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Monday, November 27, 2006

Top Five Sellers in Electronics

Apple 2 GB iPod Nano Silver (2nd Generation)
iPod nano redefines the word redesigned. Featuring a smaller, thinner, lighter anodized aluminum enclosure available in any of four colors--like this 2 GB silver model--or sleek black, iPod nano looks and feels as good as it sounds. A brighter display adds more brilliance to your album art and photos, a dock connector that fits an entire ecosystem of iPod accessories, and battery life is now up to 24 hours.
In fact, just about the only thing that hasn't changed is the name. This iPod nano puts up to 1,000 songs in your pocket. Seamless integration with iTunes means you can shop for music, audiobooks, and podcasts on the iTunes Store--24 hours a day, 7 days a week--then sync everything to your iPod nano just by connecting it to your Mac or PC. And with room for over five days of music, you'll never run out of tunes. Even up to 25,000 of your photos can come along for the ride. With features like these, iPod nano changes the way you experience your music and photos.

Apple 30 GB iPod video Black (5.5 Generation)
Apple iPod - Continuing its tradition of hardware and software innovation and design, Apple has released a new iPod that surpasses the last. This update to the 5th generation iPod with video playback features the same 2.5" display, but now it's 60% brighter! Perfect for iTunes 7, which ushers in movie and video game downloads. Another update that will help out with all that new content is the battery. This iPod has up to 14 hours of music playback, and up to 3.5 hours of video playback. You also get a newer set of white Apple earbuds, and best of all, a lower price! Ports - dock connector, Stereo minijack, composite video and audio through minijack Connectivity - USB through dock connector, composite video (with A/V cable - sold separately), and audio through headphone jack or line out on the iPod Universal Dock (sold separately) Charge Time - about 4 hrs.

Apple 1 GB Shuffle Metal(2nd Generation)
Apple iPod Shuffle - Using either witchcraft, fairy dust or highly gifted engineers (we're not sure which), Apple has created a 2nd generation iPod Shuffle of an almost impossibly small size. Only slightly bigger than a U.S. quarter, this teesy-weesy device packs 1GB of storage space.

Features:
  • iPod Shuffle holds 240 songs on 1 GB of storage
  • Download songs from the iTunes Store, import songs from your CDs, and sync them to your Shuffle
  • Thumb-friendly, circular control pad makes navigation a breeze
  • Battery indicator light features three levels--green (full), amber (low), and red (empty) Measures 1.62 x 1.07 x 0.41 inches (WxHxD) and weighs 0.55 ounces

Apple 80 GB iPod video Black (5.5 Generation)
Apple iPod - This update to the 5th generation iPod with video playback features a huge 80GB hard drive - the largest yet! With iTunes 7 ushering in movie and game downloads, there's more than enough content to satisfy this beast of a media player. Ports - dock connector, Stereo minijack, composite video and audio through minijack Connectivity - USB through dock connector, composite video, and audio through headphone jack or line out on the iPod Universal Dock Charge Time - about 4 hrs.

Features:
  • Black iPod with 80 GB hard drive for songs, podcasts, videos, games, and more
  • Large, 2.5-inch, 320 x 240 pixel color display screen is 60 percent brighter
  • Holds up to 20,000 songs, thousands of photos, and hours of video
  • Search function lets you type name of song with Click Wheel for instant results
  • Measures 2.4 x 4.1 x 0.55 inches (W x H x D); 1-year limited warranty
Canon PowerShot SD600 6MP Digital Elph Camera with 3x Optical Zoom
Equipped with the latest Canon technology, the PowerShot SD600 Digital ELPH gives all the power you'd expect from a high resolution camera and more. Built-in Flash with Auto, Auto w/ Red-Eye Reduction, Flash On, Flash On w/ Red-Eye Reduction, Flash Off, and Slow Synchro settings Shooting Specs - Auto, Camera M, Portrait, Special Scene, Night Snapshot, Digital Macro, My Colors, Stitch Assist, Movie; 2-sec./10-sec./Custom Self-Timer; Continuous shooting at approximately 2.1fps JPEG images and AVI movies stored on SD Memory Card or Multimedia Card A 16MB SD Card is included, however we suggest purchasing an Optional 512MB memory card.

Features
  • 6.0-megapixel CCD captures enough detail for photo-quality 14 x 19-inch prints
  • 3x optical zoom; 2.5-inch LCD display
  • ISO 800 shooting; widescreen (16:9) stills recording
  • Fast Frame Rate Movie Mode for shooting high-quality movies at up to 60 frames per second QVGA
  • Powered by a lithium-ion battery; stores images on SD cards
For more information on Electronics visit at www.halfvalue.com and www.halfvalue.co.uk.

Thursday, November 02, 2006

Difference Between Analog and Digital?

Analog and Digital
As a technology, analog is the process of taking an audio or video signal (the human voice) and translating it into electronic pulses. Digital on the other hand is breaking the signal into a binary format where the audio or video data is represented by a series of "1"s and "0"s. Simple enough when it's the device—analog or digital phone, fax, modem, or likewise—that does all the converting for you.

Digital versus analog can refer to method of input, data storage and transfer, the internal working of an instrument, and the kind of display. The word comes from the same source as the word digit and digitus.The digital technology breaks your voice (or television) signal into binary code a series of 1s and 0s transfers it to the other end where another device (phone, modem or TV) takes all the numbers and reassembles them into the original signal. The beauty of digital is that it knows what it should be when it reaches the end of the transmission. That way, it can correct any errors that may have occurred in the data transfer. What does all that mean to you? Clarity. In most cases, you'll get distortion-free conversations and clearer TV pictures. The nature of digital technology allows it to cram lots of those 1s and 0s together into the same space an analog signal uses. Like your button-rich phone at work or your 200-plus digital cable service, that means more features can be crammed into the digital signal. Digital offers better clarity, but analog gives you richer quality. Digital like the VCR or the CD is coming down in cost and coming out in everything from cell phones to satellite dishes.

Phone lines
  • Digital lines are found in large, corporate phone systems. Though digital lines carry lower voltages than analog lines, they still pose a threat to your analog equipment.
  • Analog lines also referred to as POTS (Plain Old Telephone Service), support standard phones, fax machines, and modems. These are the lines typically found in your home or small office
  • There are digital-to-analog adapters that not only let you use analog equipment in a digital environment, but also safeguard against frying the internal circuitry of your phone, fax, modem, or laptop.
Cordless phone
The very nature of digital technology—breaking a signal into binary code and recreating it on the receiving end—gives you clear, distortion-free cordless calls.
  • Cordless phones with digital technology are also able to encrypt all those 1s and 0s during transmission so your conversation is safe from eavesdroppers. Plus, more power can be applied to digital signals and thus, you'll enjoy longer range on your cordless phone conversations.
  • The advantage to analog cordless products? Well, they're a bit cheaper. And the sound quality is richer. So unless you need digital security, why not save a few bucks and go with an analog phone? After all, in home or small office environments where you may be the only cordless user, you won't have any interference issues.
  • when talking about digital and analog cordless phones, you're talking about the signals being transferred between the handset and its base. The phones themselves are still analog devices that can only be used on analog lines. Also, the range of your cordless phone—analog or digital—will always depend on the environment.
  • Cellular Phones

    • Perhaps the most effective use of the digital versus analog technology is in the booming cellular market. With new phone activations increasing exponentially, the limits of analog are quickly being realized.
    • Digital cellular lets significantly more people use their phones within a single coverage area. More data can be sent and received simultaneously by each phone user. Plus, transmissions are more resistant to static and signal fading. And with the all-in-one phones out now—phone, pager, voice mail, internet access—digital phones offer more features than their analog predecessors.
    • Analog's sound quality is still superior—as some users with dual-transmission phones will manually switch to analog for better sound when they're not concerned with a crowded coverage area—but digital is quickly becoming the norm in the cellular market.
    Better Sound Quality
    Digital offers a better quality of sound. Proponents of digital claimed too that because digital scrambled up the signals into bursts, it was more secure than analog and can help thwart "cloning," an act of grabbing phone account information over the air in order to copy then resell that information for piracy purposes. By some industry estimates, close to $650 million in wireless services has been coveted by these big-eared crooks, which only adds onto the operator's bottom line a cost that is eventually passed on to the customer. Digital has stronger battery life than analog, and for the most part, better, more modern features on the phones.

    For more information on Analog and Digital visit at http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Wednesday, November 01, 2006

    Buying a Television

    Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television from the television set to the programming and transmission.

    The elements of a simple television system are:
    • An image source - this may be a camera for live pick-up of images or a flying spot scanner for transmission of films
    • A sound source
    • A transmitter, which modulates one or more television signals with both picture and sound information for transmission.
    • A receiver (television) which recovers the picture and sound signals from the television broadcast.
    • A display device, which turns the electrical signals into visible light.
    • A sound device , which turns electrical signals into sound waves to go along with the picture.
    Display technology
    Thanks to advances in display technology, there are now several kinds of video displays used in modern TV sets:
    • CRT: The most common displays are direct-view CRTs for up to 40 in (100 cm) (in 4:3) and 46 in (115 cm) (in 16:9) diagonally. These are still the least expensive, and are a refined technology that can still provide the best overall picture quality. As they do not have a fixed native resolution, in some cases they are also capable of displaying sources with a variety of different resolutions at the best possible image quality. The frame rate or refresh rate of a typical NTSC format CRT TV is 60 Hz, and for the PAL format, it is 50 Hz. A typical NTSC broadcast signal's visible portion has an equivalent resolution of about 640x480 pixels. It actually could be slightly higher than that, but the Vertical Blanking Interval, or VBI, allows other signals to be carried along with the broadcast.
    Cutaway rendering of a color CRT
    • Electron guns
    • Electron beams
    • Focusing coils
    • Deflection coils
    • Anode connection
    • Mask for separating beams for red, green, and blue part of displayed image
    • Phosphor layer with red, green, and blue zones
    • Close-up of the phosphor-coated inner side of the screen
    Rear projection: Most very large screen TVs (up to over 100 inch (254 cm)) use projection technology. Three types of projection systems are used in projection TVs: CRT-based, LCD-based, and DLP (reflective micromirror chip) -based. Projection television has been commercially available since the 1970s, but at that time could not match the image sharpness of the CRT; current models are vastly improved, and offer a cost-effective large-screen display. A variation is a video projector, using similar technology, which projects onto a screen.

    Flat panel LCD or plasma: Modern advances have brought flat panels to TV that use active matrix LCD or
    plasma display technology. Flat panel LCDs and plasma displays are as little as 1 inch thick and can be hung on a wall like a picture or put over a pedestal. Some models can also be used as computer monitors.

    Buying Tips & Suggestions
    If you are shopping for a new television, there are many things to consider before buying. Viewing habits, size of unit, size of screen, price, brand, style, type, and quality are all important issues. Don’t forget to find out about the cost and time required for delivery if you are unable to retrieve the TV yourself.

    When it comes to size, you need to determine not only the size of the room in which the TV will be placed, but also the size of the stand, entertainment center, or other unit that will house the television. Don’t forget to bring a tape measure with you to the store so you can measure the TV you want to buy and make sure it will fit inside the unit. You need a little extra space around the television to allow airflow, to clean the TV, and to hook up other components.

    When it comes to getting your new TV home, make sure the one you chose will fit inside your vehicle. Also, ask for help placing the television into your vehicle instead of struggling to maneuver it yourself. Make sure you have help available to bring the set in from your car once you arrive at home as well. Some shops offer free delivery if you spend a certain amount or buy a certain size TV or larger. In this case, you should take advantage of delivery, not only because it is more convenient, but also because the seller bears all the responsibility for the set until it is safely placed inside your home.

    When choosing a TV, pay special attention to picture quality. The darker the screen when the set is turned off, the
    crisper the picture will be, because the TV can provide greater contrast than those with lighter screens, such as those that appear light gray or green. Also important is the curvature of the picture tube. Flat screens are preferred, because images are viewed in clean lines rather than curved lines, and there is far less glare from other light sources with a flat screen TV.

    For more information
    Buying a Television visit at http://www.halfvalue.com and http://www.halfvalue.co.uk websites.

    Saturday, October 14, 2006

    Videoconferencing-A Revolution in Communication

    Videoconferencing is a teleconference using video technology, such as closed-circuit television. Simple analog videoconferences could be established as early as the invention of the television. Such videoconferencing systems consisted of two closed-circuit television systems connected via cable. During the first manned space flights, NASA used two radiofrequency (UHF or VHF) links, one in each direction. TV channels routinely use this kind of videoconferencing when reporting from distant locations, for instance. Then mobile links to satellites using special trucks became rather common.

    Although the first videoconferencing was done with traditional analog TV and satellites, inhouse room systems became popular in the early 1980s after Compression Labs pioneered digitized video systems that were highly compressed. While videoconferencing may comprise any number of end points communicating, the term "video chat" typically means between two end points only.

    Multipoint videoconferencing
    Simultaneous videoconferencing among three or more remote points is possible by means of a Multipoint Control Unit (MCU). This is a bridge that interconnects calls from several sources (in a similar way to the audio conference call). The advantages of this technique are that the video and audio will generally be of higher quality because they don't have to be relayed through a central point. Also, users can make ad-hoc multipoint calls without any concern for the availability or control of an MCU.

    Components of videoconferencing System
    Following are the basic components of a videoconferencing system
    • Codec
    Camera
    • Control system
    • Display equipment
    • Audio system

    Benefits of Videoconferencing
    • Increased Productivity
    • Increased Participation
    • Improved Competitive Advantage
    • Shortened Business Cycles
    • Reduced Travel Costs
    • Reduced Travel Stress

    Technology used in videoteleconference
    The core technology used in a videoteleconference (VTC) system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/decoder).

    The other components required for a VTC system in
    • Video input: video camera or webcam.
    • Video output: computer monitor or television.
    • Audio input: microphones.
    • Audio output: usually loudspeakers associated with the display device or telephone.
    • Data transfer: analog or digital telephone network, LAN or Internet.

    Importance of Videoconferencing
    Prevents wasted time and money, on travel or transportation, for brief meetings.

    • Over 60% of face-to-face communication is non verbal. Therefore, an enriched communications tool, such as videoconferencing can promote an individual’s or a team’s identity, context and emotional situation.

    • 56% of business professionals waste an estimated 30+ minutes a day using inefficient communication methods; costing businesses an estimated $297 billion annually.

    • Brings the latest technology with reliable and easy-to-use conferencing and collaboration to your meetings.

    • Enterprises that fail to use modern communications technologies run the very real risk of falling behind their competition.

    For more details on Videoconferencing visit us at http://www.halfvalue.com and http://www.halfvalue.co.uk .

    Thursday, October 12, 2006

    PALMTOPS: A Computer in Pocket

    • A Palmtop or hand-held personal computer is small enough to hold in one hand and operate with the other. Also called a "handtop," these ultra-small computers may have specialized keyboards or keypads for data entry applications or have small qwerty keyboards.

    • Palmtops are also called PDAs, hand-held computers and pocket computers.

    • Palmtop or hand-held personal computer, lightweight, small, battery-powered, general-purpose programmable computer. It typically has a miniaturized full-function, typewriter like keyboard for input and a small, full color, liquid-crystal display for output. In addition to an operating system that is compatible with that of a desktop computer, a palmtop will typically contain a word processor, a spreadsheet program, and a calendar and phone book.

    A variety of other programs can be loaded and executed, and data can usually be transferred to and from a desktop computer. Although some palmtops are like personal digital assistants in that they accept handwritten or touch screen input, they generally differ in that the palmtop has more memory, a keyboard, and a greater variety of available programs.

    • Because of their small size, most palmtop computers do not include disk drives. However, many contain PCMCIA slots in which you can insert disk drives, modems, memory, and other devices.

    • Palmtops that use a pen rather than a keyboard for input are often called hand-held computers or PDAs.

    • A Rochester software-development company has formed an alliance with a California supplier of wireless hardware to introduce to the market for the first time a wireless LAN connection between mobile handheld devices (otherwise known as palmtops) and critical information located in enterprise systems. This enables palmtops to function as laptops and full-size personal computers, allowing the user to enter and retrieve electronically stored information in any legacy mainframe.

    Use of Palmtop

    Security forces uses palmtops in possession of terrorists in the state
    Earlier Militants used to jot down their plans on plain sheets and papers, but these days they seem to have switched to high-tech gadgets but now they use palmtops to make details of their operations, locations and code names of their compatriots to guides that led them from the Line of Control to the hinterland. They said 'A lot of data is stored in these palmtops”.

    Built-in Database program
    According to survey of German students -- One of the most important features on my Palmtop is the built-in Database program. I use the Database to keep track of my projects as well as my day-to-day homework (see above screen). I can quickly look up the details of a project when I need them instead of having to try to shuffle through my folders to find where I wrote all this information down. With the Palmtop I've never lost the information for an assignment I was working on.

    For more details on Palmtops visit us at http://www.halfvalue.com and http://www.halfvalue.co.uk .

    Necessity of Laptop in today’s World

    A portable (laptop) computer that has a flat screen and usually weighs less than 12 pounds. It uses AC power and/or batteries. Most have connectors for an external monitor and keyboard transforming them into desktop computers. Most laptop computers today fall in the notebook computer category.

    A portable computer larger than a notebook computer but smaller than a desktop. A laptop typically uses a liquid crystal display instead of a CRT display, and operates on rechargeable batteries, with a back-hinged top that allows use in one's lap, making it possible to use while traveling, though bulky compared to notebook computers.

    Minimum Required Specifications for Personal Laptop Computers

    Operating System: Windows XP Professional (English version) only. (Windows XP Home Edition is not acceptable.)

    Processor: Intel Pentium III or greater at 1.0GHz or greater.

    Memory (RAM): 256MB or greater. (512MB or greater is recommended if purchasing a new computer.)

    Hard Drive: 20GB or greater.

    Optical Drive: CD-ROM drive or better.

    USB Ports: at least 1 (also recommended: a USB flash memory storage device, a.k.a. "memory key" or "flash drive")

    • PC-Card Slots: at least 1.

    Wireless Network Card: It is required that your wireless card operate on 802.11b, which is the Law School's wireless network standard. It is also required that the card be compatible with Cisco's LEAP authentication method.

    Benefits of Laptops Computer
    Laptop Computer Provides mobility to userA laptop computer certainly provides you with an unprecedented level of freedom and mobility away from the office.

    Satisfaction Runs High
    Information from a survey of graduating student experiences conducted in the concept of the importance of the laptop computer and ubiquitous computing environment on campus.

    a) 92.1 percent agreed or strongly agreed “The computer technology skills developed at UMC are essential to future employment”.

    b) 90.2 percent agreed or strongly agreed “It was important to me to have computer access at any time, day or night”.

    c) 83.3 percent agreed or strongly agreed “Having my own computer helped me assume personal responsibility for learning”.

    Tips to Safeguard Your Laptops
    The following is a list of tips to help safeguard your laptop while traveling or conducting business.

    • Never leave your laptop unattended. Keep your laptop in your physical possession at all times and pay particular attention at the following locations: airports, hotels, car rental agencies, offices, restaurants, college campuses, restrooms, payphones, libraries, bars, hospitals, conferences centers, train stations and bus terminals.

    • Record your laptop's serial number, make and model information in your purse or wallet so if your computer is stolen, the information will be readily available when you file a police report.

    • Disguise your carrying case. By carrying your laptop in a case designed specifically for computers, you alert thieves to the fact that you are carrying something valuable.

    • Regularly back up information. Make sure you store this information separately in case your computer is stolen.

    For more details on Laptops visit us at http://www.halfvalue.com and http://www.halfvalue.co.uk .

    Wednesday, October 11, 2006

    How can recover data from laptop?

    Data Recovery notebook hard disk drives, is an increasingly vital disaster recovery option for when data is needed from a failed hard disk drive, whether the failure is mechanical, logical, or simply due to "Old Age". Notebook is the leading provider of powerful data recovery, undelete, drive image, data security and PC privacy utilities for the Windows OS family. Hard Disk Drive failure, particularly from Laptops/Notebooks is most frequently due to thermal conditions. The thermal flow (or lack there of) can cause the demise of any hard drive. Hard drives are manufactured from metal of course.Metal will expand and contract with the heating and cooling of the laptop, and its drive. Recovering data from laptops has been a part of the core business of Disklabs Data Recovery and Computer Forensics for over 8 years. Disklabs are proud to be leaders in the field of laptop data recovery, and will be proud to be able to assist you getting the data from your laptop and getting you up and running in the fastest possible time.
    The decision of whom to trust with recovering valuable data is crucial because failed recovery attempts may lead to permanent data loss. Today more than ever before, the Internet has become a confusing clutter of information promoting many data recovery companies and solutions that all sound alike – making it nearly impossible to differentiate quality companies offering solid and reputable services from those who are not. Therefore, it’s critical to know the data recovery company with whom you are doing business, and whom you can trust with your valuable data. DataRecoveryNet has the capabilities to recover data from most media types and operating systems.

    How the Data Recovery Process Works?
    Once we have completed our brief and recovered the data, we then return it to the client in the format of their choice.

    Keeping Data Secure
    If you use a hotel or other public computer, take a minute to erase the computer’s history files, cache files and cookie files before you finish using the machine.
    Take caution when using a hotel business center computer to access password-protected Internet sites. Someone could attach a keystroke interceptor on the machine in an attempt to obtain user IDs and passwords.

    Keeping Data Safe
    Back up all data before going on vacation and make additional backups on the road if possible.
    Only operate your laptop in a dry, shaded environment such as a hotel room or airport lounge.
    Avoid eating or drinking in close proximity to your computer.
    We can write the image back to hard disk, or can transfer it onto a CD, DVD, flash card – in fact, whatever storage media they prefer

    Our resources – both human and technological – allow us to work on dozens upon dozens of drives concurrently, giving them each full and proper attention, and we’re proud that we complete the overwhelming majority of all jobs within a 7-10 day turnaround period. We do, of course, offer an emergency “premium service” for those who need a job completing as a matter of extreme urgency. This has been a brief and extremely simplified outline of the procedures we follow for recovering data. Clearly there’s far more in-depth expertise involved, but hopefully it has given you some idea of how we go about our work.

    Data Recovery tips
    1. Never assume data recovery can not be done!
    2. Ensure that you make regular backups
    a) Backup on to a floppy disk
    b) Backup on to a CD, (Compact Disk)
    c) Backup on to a DVD, (Digital Versatile Disk)
    d) Backup on to a second hard disk
    e) Backup on to an external hard disk
    f) Backup on to tape
    g) Email the data to a trusted colleague or a friend
    3. Check the data that you are backing up works!
    4. Ensure that you’re anti virus software is kept up to date.

    For more information on Recovery data from laptop visit at http://www.halfvalue.com and http://www.halfvalue.co.uk websites.

    3-D Effects Created by Camera System

    • A former Apple Computer engineer who previously co-founded WebTV Networks and the set-top box firm Moxi, Mr. Perlman is now putting the finishing touches on Contour, a futuristic camera system that will add photorealistic three-dimensional effects to digital entertainment.

    • A futuristic camera system will make it possible to create compellingly realistic synthetic actors by capturing the facial movements of real actors in much greater detail than is currently possible.

    • The system could change the nature of cinematography in several ways, according to leading Hollywood producers and technologists who are planning to use the system. For example, it will make it possible to create compellingly realistic synthetic actors by capturing the facial movements of real actors in much greater detail than is currently possible.

    • In a darkened garage, digital actors are given a whole new face. Actors must cover themselves with makeup containing phosphorescent powder for the Contour, a system that can create 3-D effects. It will make it possible to create compellingly realistic synthetic actors by capturing the facial movements of real actors in much greater detail.

    • 'The Contour system requires actors to cover their faces and clothes with makeup containing phosphorescent powder that is not visible under normal lighting. In a light-sealed room, the actors face two arrays of inexpensive video cameras that are synchronized to simultaneously record their appearance and shape".

    "The difference offered by Mr. Perlman’s technology is in the detail. Standard motion-capture systems are generally limited in resolution to several hundred points on a human face, while the Contour system can recreate facial images at a resolution of 200,000 pixels."

    • Instead of grabbing points on a face, it will be able to capture the entire skin, allowing filmmakers to transform the appearance of actors in the computer and raising the possibility of a new form of digital video in which the viewer can control the point of view — what is being described in Hollywood as "navigable entertainment."

    • "The technology will let filmmakers transform the appearance of actors in the computer, raising the possibility of a new form of digital video in which the viewer can control the point of view — what is being described in Hollywood as “navigable entertainment.”

    For more details on Camera System visit us at http://www.halfvalue.com and http://www.halfvlue.co.uk .

    Monday, October 09, 2006

    What is iPod shuffle?

    iPod shuffle is flash-based digital music player designed by Apple Computer. The iPod shuffle is designed to be easily loaded with a selection of songs and to play them in random order. This iPod enables iPod shuffle users to get rid of all that iTunes or other complicated playlist management stuff. Due to the simple structure of the shuffle it is possible to use the player almost like any other USB flash MP3 player: You simply copy MP3 files onto it. You only need to run the Database Builder program after you added or removed files from the iPod.

    Type of iPod shuffle
    There are two Category of iPod, which are categorized on the basis of storage capacity.
    512 MB iPods
    1GB iPods
    Good Thing about iPod shuffle
    Small size and High Storage

    You know what they say about good things and small packages. But when something 1.62 inches long and about half an ounce holds up to 240 songs, “good” and “small” don’t quite cut it. Especially when you can listen to your music for up to 12 continuous hours. In fact, iPod shuffle just may be the biggest thing in small.

    Battery
    The Battery life of iPod shuffle is 12 hour. It also provide battery indicators, Green means go, Amber means you’re low, and Red means you’ve almost hit zero. iPod shuffle may keep rocking even longer than you do. Rechargeable batteries have a limited number of charge cycles. Battery life and number of charge cycles vary by use and settings.

    Easy to carry
    Clip it to your coin pocket. Clip it to your bag. No matter where you clip your skip-free iPod shuffle, you’ll have instant access to music. And iPod shuffle’s anodized aluminum enclosure goes with absolutely everything. Put it on, turn it up, and turn some heads.

    Headphone
    iPod shuffle’s headphone jack does double-duty as a dock connector. Flip iPod shuffle upside-down and drop it into the included dock. Then connect the dock to your Mac or Windows PC via USB for a quick sync and charge. And if you’re away from your computer, you can charge on the go with an optional USB adapter.

    Remix and match
    Got more than 240 songs in your iTunes library? No problem. Let iTunes autofill your iPod shuffle and get a new musical experience every time. Pop follows jazz. Rock follows rap. iPod shuffle loves to improvise. Take the Shuffle switch, for instance. Even if you’ve synced a particular playlist, you can shuffle songs with a flick.

    Configuration of Latest iPod shuffle
    Flash Memory Size: 1 GB
    Song Capacity: 240 Songs
    Color & Material: Silver Aluminum
    Integrated USB Port: No
    Dimensions: 1.07 x 1.62 x 0.41 inches
    Price (As Introduced): US$79

    For more details on iPod shuffle visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    The focus on Broadband Service

    Not many years ago broadband was something you got only from a hard-wired office PC. Now it's as easy as flipping open a laptop in a coffee shop or, increasingly, using a smart phone. Understanding the potential of broadband networking in five or 10 years requires not just looking at what's happening inside the labs but listening to the tech visionaries.
    Consider the efforts to eliminate a mobile device's reliance on one broadband network. Companies are developing chipsets and IP multimedia subsystems to make it easy for mobile devices to pass from one network to another, depending on network availability, without losing a connection. Imagine leaving the house with your smart phone connected to your home LAN, having it automatically switch to a fourth-generation cellular network on the bus, then to a WiMax network downtown, and then to your company's wireless LAN in the office. Conversations won't stop and people won't understand that you have changed technologies, says Mark Francis, VP of enterprise architecture at AT&T Labs.

    Broadband digital services for the home are very competitive with both the quality and quantity of services increasing dramatically over the last couple of years. However, the complexity, for the average person, of network wiring inside the home is still bothersome. The cable industry is offering a triple play package consisting of television/on-demand video, high-speed data and voice. Through fiber optics, the telephone companies are able to match and sometimes exceed in quality, the triple play package offered by the cable companies and at a more competitive price. Electric utility companies, through power-lines, are beginning to deploy high-speed data services. Satellite companies are limited to television and video on-demand. The addition of wireless phone services will turn the triple play into a quadruple play package.

    Networking inside the home is still a problem, though. Despite the advances in broadband to the home, networking within the home is still a little behind. Deploying the routers and network adapters to connect PCs and home electronics in a seamless network still has not been easily achieved for the average consumer.
    However, homebuilders are pre-wiring new homes for networking to help alleviate this problem. This research report analyzes the comprehensive home networking market and corresponding industries that focus on the consumer home network, both broadband to the home and networking inside the home. We present strategies and company profiles of key industry players and case studies of consumer broadband users. We also look at changing market conditions and give recommendations for successfully competing in the home networking market.

    You are Being Followed
    People are accustomed to managing any number of digital identities for their home phones, personal cell phones, work cell phones, work E-mail, home E-mail, and more. And each of these identifies is tied to a specific wireless or wired network. Imagine that instead of this complexity, you had a personal network that followed you everywhere.

    For more information on Broadband Service visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Saturday, October 07, 2006

    What is Motorola V360?

    Balancing advanced functionality and affordability of cell phone Motorola launched V360 model, this is the advance version of V300 and V330. The design and features of this model are given below:

    Motorola V360
    The Motorola V360 is a slim-flip phone. It features SCREEN3, an innovative technology solution from Motorola that gives you zero-click access to news, sports, entertainment, and other premium content directly from your mobile device home screen – no buttons to push, no browsers to launch. Motorola's SCREEN3 puts fresh content at your fingertips. And, with video capture and playback, an integrated VGA camera, Push-To-Talk (PTT) functionality, Bluetooth wireless connectivity, an MP3 player and expandable Tran Flash memory, this classic clamshell proves it’s possible to have it all.

    Design:
    The V360’s body is similar in shape and size to the V300 and V330 (Measuring 90 x 47 x 24 mm, and weighing 111 g) but external antenna is replace with an internal one. This improves the mobility of V360. Featuring a 4-color 96 x 80 px LCD, the V360's external screen is enhanced with a larger surface area (the V300 and V330 being 2-color 96 x 32 px LCDs). Above the display, the lens to a 0.3-megapixel VGA camera captures still and moving photos at up to 640 x 480 px in resolution.

    A Charger Port (mini-USB Port) and Voice Dial are located on the left side, used for record voice messages or issuing voice commands, while Volume Keys and a dedicated Smart Key is situated on the right, providing access to frequent functions by anticipating likely subsequent actions are to follow; such as the selection a menu item after it has been highlighted. A standard Headphone Jack is nearby provides personal listening with the built-in MP3 player, or convenient handsfree communication with a wired headset.

    The external memory card slot (supporting cards of size up to 512 MB) is concealed behind the battery cover, but can still be accessed without powering down the phone. As such, this was the first Motorola GSM (non-UMTS) product which supported "hot swapping" of the memory card, with the ability to gracefully refresh file lists when the card is inserted or removed.

    Technical specifications of V360
    •Bands: GSM 900 / 1800 / 1900 or GSM 850 / 1800 / 1900
    • Connectivity: Bluetooth (Class 2), EDGE / GPRS Class 10, mini-USB
    • Dimensions (H x W x D) : 90 x 47 x 24 mm
    • Mass: 111 g • Internal display: 176 x 220 262K-color TFT
    • External display: 96 x 80 4-colors LCD
    • Camera: VGA (640 x 480) with 4x digital zoom
    • Storage: 5 MB internal, 64 MB microSD (TransFlash) external memory card
    • Talk time: Up to 450 minutes
    • Standby time: Up to 240 hours

    Motorola V360 Features
    • Built-in VGA camera with flash, 4x zoom and video clip capture and playback
    • MP3 player to store, repeat, shuffle and play favorite tunes through a 22Khz polyphonic speaker
    • 24-chord polyphonic speaker with MP3 ringer support
    • EDGE technology for high-speed data transmission with WAP 2.0 compliant browser
    • Bluetooth Class 2 wireless technology for hands-free connectivity
    • Speaker-independent voice recognition with full-duplex speakerphone
    • J2ME MIDP 2.0 support for application, ringer, wallpaper, graphic and game downloads
    • Messaging via Multimedia Messaging Service (MMS), IM Wireless Village and email (POP3, SMTP).

    For more details on Cell Phones visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Thursday, October 05, 2006

    How to prevent your Computer from Slowdowns

    Prevention of your computer from slowdowns effects the performance of your computer, because if your computer working with proper speed, it definitely increases your efficiency and working speed. These are the guidelines given below which will help to maintain your computers speed:

    • Fragmented hard drive is the biggest bottlenecks of all. Disk fragmentation can significantly slow down your machine. A common cause of disk fragmentation is a disk that is too full. You should keep 20 percent to 25 percent of your hard disk space free to minimize file fragmentation and to improve the defragmenter’s ability to defrag the disk. Thus, if a disk is too full, move some files off the drive and restart the defragmenter. Once you defrag (defragment) your hard drive, you may notice an immediate and significant increase in system performance.

    • Ensure antivirus software is installed, automatically checking for updates, and automatically scanning all incoming files. If there is a virus associated with a new file it will automatically be repaired or quarantined. New viruses come out daily. Because of this, the anti-virus software needs to be configured to automatically updates it's self.

    • When Windows boots up, one of the first things it does is check the Fonts folder and then load all of the fonts present so that they will be accessible from whatever applications you are running. The problem is that all of those fonts eat up resources, and they slow down your system, especially on boot up. To over come this problem open my computer, then double-click the Control Panel icon, and then the Fonts folder. The system will display a list of all of the fonts currently installed on your computer. Double-click any font to see examples of it. If it looks like something you will never use, select and then delete it.

    • One often-ignored culprit of system slowdown is the machine’s BIOS settings. Slowdowns may occur if the BIOS settings do not match the optimal machine configuration. Often you can improve machine performance by researching your motherboard’s optimal BIOS settings, which may not be the same as the factory defaults.
    There is no centralized database of optimal BIOS settings, but you can employ a search engine such as Google or AllTheWeb and use your motherboard name and BIOS as keywords to find the correct settings.

    • Read the terms and conditions before signing up for or downloading anything for free on the Internet. Free downloads like Kazaa (music), games, toolbars, and coupons often come with adware or spyware. The terms and conditions of downloads explain adware will be installed on the persons machine in exchange for the free software, music, pizza or whatever. Of course, few people read these terms and conditions.

    • Multitasking was a boon for which we had been waiting for years. Suddenly, we could actually set the computer to a task and that task could continue while we did something else, such as work on a document or browse another Web site. Microprocessors, even today's more powerful ones, can only do so much before they begin to bog down. If you have multiple applications open, especially if they are each working on tasks, overall speed will suffer; the multiple tasks will indeed get processed, but that processing will take place more slowly than if any one of the activities were the only one taking place.

    • Modern processors generate a lot of heat. That’s why all processors require some sort of cooling element, typically a fan of some type. When the processor temperature goes over spec, the system can slow down or run erratically.

    • Install a hardware firewall to keep hackers out. Hackers have automated tools that are looking for any PC connected to the Internet without a firewall. If you are connected to the Internet but don't have a firewall, hackers (criminals) will be in your PC. Beyond stealing your information they can install programs that can damage or slow your PC down. A hardware firewall to protect all the PCs on the local area network provides the best protection. Recommended hardware firewalls are Linksys, Netgear, and D-link.

    • Your computer is a complex system comprising many pieces of hardware and software, all of which must work well together for optimum results. Eliminating the bottlenecks that result in system slowdowns is one major step in that process.If you follow the above prevention, definitely your computer running better. We suggest doing these things yourself or schedule a computer professional to proactively perform and ensure these preventive maintenance steps are in place and working on a monthly basis. This will prevent computer slowdowns.

    Wednesday, October 04, 2006

    What are Telescopes and its Benefit?

    A telescope "telescope" is an instrument designed for the observation of remote objects. The term usually refers to optical telescopes, but there are telescopes for most of the spectrum of electromagnetic radiation and for other signal types. An optical telescope is an optical tool that gathers and focuses electromagnetic radiation. Telescopes increase the apparent angular size of distant objects, as well as their apparent brightness. Telescopes work by employing one or more curved optical elements - lenses or mirrors - to gather light or other electromagnetic radiation and bring that light or radiation to a focus, where the image can be observed, photographed or studied. Optical telescopes are used for astronomy and in many non-astronomical instruments.
    The main purpose of a telescope is to gather light, i.e. to collect and focus photons. We can think of a telescope then as a "light bucket" - the bigger the bucket, the more photons a telescope can collect.

    Types of telescopes:
    There are three basic types of telescopes Refractors, Newtonian reflectors, and Catadioptrics.

    Newtonian Reflector Telescopes: Newtonians usually use a concave parabolic primary mirror to collect and focus incoming light onto a flat secondary mirror that in turn reflects the image out of an opening at the side of the main tube and into the eyepiece.

    Refractor Telescopes: Refracting telescopes have an objective lens at the front of the tube. The light exits out through the back of the tube to the eyepiece. Since many observations are made high in the sky, a right-angle diagonal is used to avoid neck strain. This also provides an upright image making them suitable for terrestrial observations. A refractor has several advantages over other designs. The tubes are enclosed so that dust and moisture do not enter the tube, they have fixed optics that do not normally require collimation, and they do not have a central obstruction which reduces the light entering the tube. A refractor typically will give higher quality images of planets than other telescopes of similar aperture.

    Catadioptric Telescopes: Telescopes using a combination of both mirrors and lenses are called catadioptrics. There are many different designs. Examples of these are the Schmidt-Cass grain and the Maksutov-Cassegrain. Usually a full aperture lens is used to correct aberrations in a compound reflecting telescope. The corrector lens also increases the performance of the instrument as air currents are eliminated. The main advantage of the design is that, because the light path is folded back on itself, it provides a very portable, short physical length telescope with a long focal length.

    Benefit:
    1. The aperture of a telescope is several times larger than the aperture of human eye so that the objects that can not be normally seen by unaided eye can be seen. Light- gathering power of a telescope is proportional to the area of its aperture and hence depends on the square of the radius of the mirror. Therefore a 20 cm diameter telescope collects four times more photons than a 10 cm diameter telescope.
    2. A telescope can be equipped to record light over a long period of time, by using photographic film or electronic detectors such as photometers or CCD detectors while the eye has no capability to store light. A long-exposure photograph taken through a telescope reveals objects too faint to be seen with the eye, even by looking through the same telescope.
    3. A third major advantage of large telescopes is that they have superior resolution, the ability to discern fine detail. Small resolution is good. The resolution is directly proportional to the wavelength being observed and inversely proportional to the diameter of the telescope.

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    Tuesday, October 03, 2006

    Software Mirroring “A Tool to protect your hard drive data”

    Mirroring is the automated process of writing data to two drives simultaneously. Mirroring is used to provide redundancy. If one drive fails, the redundant drive will continue to store the data and provide access to it. The failed drive can then be replaced and the drive set can be re-mirrored.

    This is quick how to setup your mirroring with two exactly the same hard disks. It assumes you're building a new system from scratch, and setup mirroring at install time. But let's get something straight first: Software mirroring does not mirror the disks - it mirrors partitions. Thanks to Ed Wilts from Redhat General Newsgroups for this remark. So in this guide I'll show you how to setup your partitions on one disk and mirror them to another. After that, we will learn how to rebuild our mirrored partitions after one disk dies.

    Need of Software Mirroring
    Mirroring is an easy way of protecting the data, from beeing lost from disk crash. For example, If you keep your private stuff on one partition you can mirror this partition to another on the second drive, and if one disk fails, you will not lose your data, since you have the exact same copy of your files on the second disk. The same goes for the whole filesystem. If you setup mirroring correct, you might never have to reinstall your system again.

    Software Mirroring vs. Hardware Mirroring
    • Disk mirroring can be implemented entirely in software. Software mirroring can be less expensive, but it is also slower. Software mirroring requires the host computer to write the mirrored data twice.
    • Disk mirroring can be implemented in hardware on the host I/O controller. The burden of writing each bit of data twice is placed upon the I/O controller, which is specifically designed for it.
    • Disk mirroring can also be implemented in hardware on an external storage device, such as a RAID array. In this case, mirroring is completely removed from the hosts responsibility

    Benefits of Software Mirroring
    • Data is backed up as changes are made keeping the backup copy current.
    • Immediate access of an up-to-date remote data backup in case of local server failure.
    • Rapid disk to disk data recovery from the central server to remote server. • When data is restored, data loss is reduced to a minimum.
    • Continuous real-time disk to disk backup operation minimizes impact on network performance.
    • Backup windows all but eliminated.
    • Provides 24X7 data availability and disaster recovery.

    For more details on Software Mirroring visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ web sites.

    Monday, October 02, 2006

    DVD more Data storage than CDs

    Digital Video Disc or Digital Versatile Disc
    DVD a small plastic disc used for the storage of digital data. The successor media to the compact disc (CD), a DVD can have as much as 26 times the storage capacity of a CD. When compared to CD technology, DVD also allows for better graphics and greater resolution. In the case of an audio recording, where the data to be stored is in analog rather than digital form, the sound signal is sampled at a rate of 48,000 or 96,000 times a second, then each sample is measured and digitally encoded on the 4 3/4 -in. (12-cm) disc as a series of microscopic pits on an otherwise polished surface. The disc is covered with a protective, transparent coating so that it can be read by a laser beam. As with other optical disks nothing touches the encoded portion, and the DVD is not worn out by the playing process. Because DVD players are backward compatible to existing technologies, they can play CD and CD-ROM discs; however, CD players cannot play DVD and DVD-ROM discs.

    DVDs Read Only
    A DVD-ROM is like a larger CD-ROM that holds data and interactive audio and video material. Like CD-ROMs, DVD-ROMs are manufactured.

    DVD Audio
    DVD-Audio is a format for delivering high-fidelity audio content on a DVD. It offers many channel configuration options at various sampling frequencies and sample rates. Compared with the CD format, the much higher capacity DVD format enables the inclusion of either considerably more music or far higher audio quality.

    DVD TV Game
    A DVD TV game is a standalone game that can be played on set-top DVD players. The game takes advantage of technology built into the DVD format to create an interactive gaming environment. To function correctly the DVD TV Games require no additional hardware and are compatible with most DVD players, including DVD-ROM. This technology has already been implemented for use in gaming, advertising, music, education, and corporate training.

    DVD Stands For?
    Originally, "Digital Video Disc" Since the technology became important to the computer world, the "video" was dropped, and it was just D-V-D. Later, it was dubbed "Digital Versatile Disc" by the DVD Forum. Take your pick.

    Direct to DVD
    The popularity of DVDs has caused the term "direct-to-DVD" to widely replace "Direct-to-video" (see main article). However, the lucrative market for DVDs has resulted in less stigma for direct-to-DVD releases as compared to direct-to-video releases. Some minor films can be made with a small budget and turn a profit on DVD sales alone, and some are made specifically for this purpose.

    DVD recordable and rewriteable
    Initially developed for the need of data storage for back-up and transport, DVD recordable is now also used for consumer audio and video recording. Three formats were developed: -R/RW (minus), +R/RW (plus), -RAM (ram).

    Dual layer recording
    DVD recordable discs supporting this technology are backward compatible with some existing DVD players and DVD-ROM drives. Many current DVD recorders support dual-layer technology, and the price point is comparable to that of single-layer drives, though the blank media remains significantly more expensive. Currently the technology has severe problems with compatibility in hardware DVD players.

    For more information on DVD more Data storage than CDs visits our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Friday, September 29, 2006

    What is wireless credit card machine?

    Wireless credit card machines are at the forefront of credit card processing technology. Many have built in pin pads and thermal printers to make them a complete mobile transaction solution. They are lightweight, very portable and are easy to use.

    • A wireless credit card machine comes with advanced technology but also with a much higher price tag when compared to standard POS terminals. The starting price on a wireless credit card machine is around $850.00 for full featured terminals and can go up from there.

    • Wireless credit card machines are most often used in mobile and trade show businesses, but are becoming more common in upscale restaurants, taxi, limo, and delivery services.

    • The comstar charge anywhere terminal has a much lower price, but does not include an attached printer. One of the benefits of wireless terminals is a feature called store and forward. This service allows cards to be processed when no cellular service is available, by storing the card and transaction information obtained in the swiping of the credit card. The merchant later completes the transaction when service is available. By using store and forward, a merchant will never have to turn down a sale.

    • Most wireless terminals have built in pin pads, and are also able to operate with electronic check acceptance services. Due to federal regulations, both debit and electronic checks must be processed through a land line connection and cannot be processed wireless. This is due to the added security that is required when transactions involve a customer’s bank account.

    How Wireless Network works
    Wireless credit card machines operate on wireless networks, and thus require additional wireless fee's for the cellular service. A wireless credit card machine can be used with a normal phone line if cellular service is not available within a particular area, or can be set up with a store and forward system when no telecommunication method is available at all.

    Important Wireless Network Information

    1. Mobitex Wireless Processing Network
    It uses a satellite network, and operates similar to a cellular phone. This network is the standard for wireless processing. The mobitex network is run by Velocita Wireless. This is not the standard cellular phone network, but is designed specifically for business and processing uses.

    2. CDPD Wireless Processing Network
    It is similar to but pre-dates the Motient network is called CDPD. Machines that use the CDPD system will soon be useless on the wireless processing network because the CDPD system is being abandoned. It is important when purchasing a wireless terminal to ensure that the machine does not use the CDPD wireless network but uses the Motient or CDMA networks.

    3. Wireless Network
    Wireless Network is very new for processing is the standard GSM and CDMA cellular phone networks. The GSM network is used by Cingular and T-Mobile. The CDMA network is used by Verizon and Sprint Wireless. These systems are the networks that most cellular phones operate on, allowing for a very large coverage area and reliable service. The coverage area is substantially larger than the Motient Network.

    For more details on Credit card Machine visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Thursday, September 28, 2006

    Definition & Basic Terms of Computer

    A computer is a machine for manipulating data according to a list of instructions known as a program.
    1. Computer is electronic device which is use in storage and processing information. Computer is a very fast working
    2. A computer is composed of hardware and software, and can exist in a variety of sizes and configurations.
    3. A computer that stores retrieve and process data from backend. Give the result on your screen. It is very fast device. Calculation is very fast.

    Computer:
    Having the characteristics of simulating computer-generated output, such as printout, and illuminated displays.
    1. A device that accepts data, processes the data in accordance with a stored program, generates results, and usually consists of input, output, storage, arithmetic, logic, and control units.
    2. A functional unit that can perform substantial computation, including numerous arithmetic operations or logic operations, without human intervention during a run.

    Data:
    Representation of facts, concepts, or instructions in a formalized manner suitable
    for communication, interpretation, or processing by humans or by automatic means. Any representations such as characters or analog quantities to which meaning is or might be assigned.

    Program:
    1. A plan or routine for solving a problem on a computer.
    2. A sequence of instructions used by a computer to do a particular job or solve a given
    problem. To 3.To design, write, and test programs.

    Input output:
    Input/output, or I/O, is the collection of interfaces that different functional units of an information processing system use to communicate with each other, or the signals sent through those interfaces. Inputs are the signals received by the unit, and outputs are the signals sent from it. The term can also be used as part of an action; to "do I/O" is to perform an input or output operation. I/O devices are used by a person (or other system) to communicate with a computer. For instance, keyboards and mice are considered input devices of a computer and monitors and printers are considered output devices of a computer. Typical devices for communication between computers are for both input and output, such as modems and network cards.

    Computer Software:
    The term "software" was first used in this sense by John W. Tukey in 1957. In computer science and software engineering, computer software is all computer programs. The concept of reading different sequences of instructions into the memory of a device to control computations was invented by Charles Babbage as part of his difference engine. The theory that is the basis for most modern software was first proposed by Alan Turing in his 1935 essay Computable numbers with an application to the
    Software is a program that enables a computer to perform a specific task, as opposed to the physical components of the system (hardware). This includes application software such as a word processor, which enables a user to perform a task, and system software such as an operating system, which enables other software to run properly, by interfacing with hardware and with other software.

    Computer Hardware:
    Computer hardware is the physical part of a computer, including the digital circuitry, as distinguished from the computer software that executes within the hardware. The hardware of a computer is infrequently changed, in comparison with software and data, which are "soft" in the sense that they are readily created, modified or erased on the computer. Firmware is a special type of software that rarely, if ever, needs to be changed and so is stored on hardware devices such as read-only memory (ROM) where it is not readily changed.
    For more information on Definition & Basic Terms of Computer visit our http://www.halfvalue.com/ and http://www.halfvalue.co.uk/ websites.

    Basic Knowledge for Buying Computer

    To buy a good computer you need to decide what the computer will be used for. Common tasks include web browsing, office work, digital photography editing, watching movies, computer games, editing video, CD or DVD burning and other tasks.

    Once you know what your computer will be used for you it will simplify the choice of different components, for example there is not point in buying very expensive LCD screen that will be great for gaming if it will be only used for editing office documents.

    Computing has advanced rapidly during the last few years. With new technologies and improvements that were introduced it might be a little tricky to choose the best computer for your needs.

    You will have many factors to consider when deciding on which computer equipment to buy. This guide will help you compare computer equipment features, and help you to examine and sift through many of the basic items before you buy a new computer. Components

    A typical computer consists from the following components:
    • Mother board
    • Processor
    • Memory
    • Storage devices
    • Display

    Mother board
    Motherboard is the main board of the computer, almost every computer part connects to it. The motherboard has slots for different components.
    • In Processor socket each socket is designed for a specific type of processor so not every processor will fit every motherboard. This means that AMD processor will not work with Intel motherboard and vice versa.
    • Memory socket is for the memory.
    • Graphic card slot is a slot for the graphic card.
    • PCI slot is used for add on cards such as modems, network adaptors, TV capturing cards, USB or Fire wire cards. There may be additional slot types on the motherboard but they are for legacy cards.

    Processor
    Processor is a chip that performs all the calculations in the computer. The processor operating frequency is measured in Hz. The processors are manufactured mainly by Intel and AMD. The processor connects to a socket on the motherboard. Each processor range is designed for a specific socket types. Since Intel and AMD use different socket types mother boards designed for Intel processors are not compatible with AMD and vice versa.

    Memory
    The operating memory is used by software for loading data for faster access. The memory size is measured in MB. Some programs require a certain amount of memory size for optimal results. The memory operates at different frequencies measured in HZ the faster the frequency the faster the performance. Each memory type is designed for a specific motherboard chipset. To pick a suitable memory for the motherboard check the motherboard‘s manufacturer specifications for the memory.

    Storage Devices
    Most hard drives in today market will provide more than enough storage. The basic computer equipment comes with 40GB or larger, which is plenty for most tasks. But for working with graphics, video, music, or large databases 80GB should be the minimum.

    Display
    There are two types of computer displays CRT and LCD.LCD monitors are more expensive but take less space than CRT monitors.
    • CRT are based on the old cathode ray tube technology, they are cheaper than LCD monitors but take more space on the desktop.
    • LCD stands for Liquid Crystal Display. The LCD displays are thin and take less space than CRT monitor. However some LCD monitors have slow response time that may lead to “ghost” artifacts during games or video files display.

    Warranty and Tech Support
    A one-year warranty on most computer equipment is plenty, because most problems seem to happen in the first year. If you want you can get an extended two to three year warranty for around $150 to $200.

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