What are the differences between LCD and CRT Monitors

Image Distortion
                LCDs are free from geometric image distortions at the screen edges because they
are a flat matrix display where every pixel is active.
CRT s are subject to peripheral distortion of the image as the electron beam becomes
progressively more tangential to the monitor screen phosphors at the edges,
hence CRT screens typically have a black dead space around them.

Image Flicker
                LCD s are free from flicker because they do not rely on a scanning electron beam.
CRTs are more prone to flicker.

What are the Differences between Desktop and Notebook Computer

Differences between desktop and notebook arise in terms of the location where you are going to used it, the size, and the future functionality.

In terms of location:

        Notebook is very handy and can easily be transported and conveniently used in temporary spaces such as in class rooms, in libraries, temporary offices, and at meetings. It can be used while you are on plane or navigating through ship.

Notebook computer is a small computer that can be tuck into a handbag or briefcase
to carry anywhere, in shopping, meetings or even in vacations.
You can carry your notebook to class and take note the important points in the discussion directly into your notebook.

How To Buy a Computer - Guidelines in purchasing Desktop computer

 Computer nowadays becomes one of the necessities of human life. Computers are use for media creation, workstation, publishing, intensive gaming, recording music and making Flash movies. checking emails, surfing the web, and word processing, video editing, drafting emails and conducting your online banking, handling business online and etc.
Below are the things you consider before you make a purchase.

Where To Buy a Computer

Choosing a buying location can be the most costly mistake made by end user in purchasing computer. Below are the list of the main location where you can buy a computer.

 High Street Auction
                You can see the actual computer in action here before you pay and you can take it back for a full refund if not functioning well. The computer here comes with complete operating system and some bundled software and has easy payment terms. But commonly the staff at these stores may have limited knowledge and could give you a wrong information.

Where Could I Find Software for Computer

Below are the websites of the most basic software needed on your computer.
Operating System
                Microsoft Windows - http://www.microsoft.com/Windows/default.mspx
Mac OS X - http://www.apple.com/macosx/
Linux - www.linux.org/

What are the Software Needed in running Notebook or Desktop Compute

The software listed here are only the basic software needed to run your computer. Commonly, what software you need depends on the purpose of your computer.

1.) Operating System
You need operating system to run your computer. Without operating system, there is no need of computer at all. Common operating available today are : Windows 2000/XP/Vista from Microsoft, Linux, Mac OS X and BSD or Berkeley Unix.

How To Buy Notebook Computer - A Guide in Purchasing Laptop Computer

Below are the things you consider in buying a laptop or notebook computer.

1. Determine the SIZE .

        Your Need and Purpose will determine the SIZE. Below are the group of laptop or notebook computer that are categorized according to its SIZE.

What is Webcam

WebcamA camera connected to a computer or server that allows anyone connected to the internet to view still pictures or motion video of a user. The term webcam is also used to describe the low-resolution digital video cameras designed for such purposes, but which can also be used to record in a non-real-time fashion. .

What is Video Projector

About ComputerA hardware device that enables an image, such as a computer screen, to be projected onto a flat surface. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other inconsistencies through manual settings. Video projectors are widely used for video conference, room presentations, classroom training, and home theatre applications.

What is Video Card

Video CardAlso known as a graphics card, graphic adapter, video board, video controller, video adapter is an internal circuit board that allows a display device, such as a monitor, to display images from the computer. It operates on similar principles as a sound card or other peripheral devices. The term is usually used to refer to a separate, dedicated expansion card that is plugged into a slot on the computer's motherboard.

What is UPS

UPSUninterruptible Power SupplyUPS is a hardware device that provides a backup power source in case of a power outage (blackout), brownout, or a surge in power. A UPS provides enough power for the computer or computers to shut down properly or to remain up during a temporary power outage. Typically, a UPS keeps a computer running for several minutes after a power outage, enabling you to save data that is in RAM and shut down the computer gracefully.

What is Sound Card

Sound CardAlso known as a sound board or an audio card, a sound card is an expansion card or integrated circuit that provides a computer with the ability to produce sound that can be heard by the usercanner is commonly connected to a computer USB, Firewire, Parallel or SCSI port.

What is a Scanner

ScannerA Scanner is a computer peripheral device that allows a user to take an image and/or text printed on paper and convert it into a digital file, allowing the computer to read and/or display the scanned object. A scanner is commonly connected to a computer USB, Firewire, Parallel or SCSI port.

What is a Processor

processorThe processor is the brain of the computer. It handles all the processes and transactions done by a personal computer. CPU and processor are used interchangeably. CPU or processor is housed in a single chip called microprocessor.

What is Printer

PrinterAn external hardware device responsible for taking computer data and generating a hard copy of that data. Printers are one of the most used peripherals on computers and are commonly used to print text, images, and/or photos.

What is a Network Card

Netword CrtdNetwork Card also known as Network Interface Card or NIC, network adapter, LAN Adapter, is a printed circuit board containing the necessary hardware used to connect a computer to a network or other computer. It provide a dedicated, full-time connection to a network.

What is a Mouse

MouseA mouse is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position.

What is a Motherboard

MotherboardA motherboard is a printed circuit board that is the foundation of a computer and allows the CPU, RAM, and all other computer hardware components to function with each other. It is also known as a mainboard, baseboard, system board, and logic board.

What is a Modem

ModemA Modem which comes from the word “Modulator/Demodulator” is a device that modulates outgoing digital signal from computer or any digital devices into an analog signal to transmit trough cable or telephone lines and demodulates incoming analog signal from cable or telephones lines into digital signal to be used for any digital devices such as computer

What is Memory or RAM

MemoryMemory or RAM is the temporary working memory that your computer uses to perform calculations and manipulate files. When you open a document, it is copied from the hard drive into RAM. As you and your word processor work on the file, the modified copy exists only in RAM. When you save the file, it is copied from RAM back to the hard drive, or permanent storage. It is also the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor.

What is LCD Monitor

LCD MonitorLCD Monitors are commonly used in notebook computers and now are most popular for flat panel desktop monitors. It is a flat panel display device that uses rod-shaped molecules called liquid crystals that flow like liquid and bend light. It is often utilized in battery-powered electronic devices because it uses very small amounts of electric power.

What is Keyboard

KeyboardA Keyboard is a primary input device that is used mainly for inputting text. Its key-arrangement was patterned from and electronic and mechanical typewriter.

What is Hard Disk Drive

Hard Disk DriveHard Disk Drive is the mechanism that controls the positioning, reading, and writing of the hard disk, which furnishes the largest amount of data storage for the PC. Although the hard disk drive and the hard disk are not the same thing, they are packaged as a unit and so either term is sometimes used to refer to the whole unit.
There are several interface standards for passing data between a hard disk and a computer. The most common are IDE and SCSI.

What is DVD-RW

DVD-RWDVD-RW is a rewritable optical disc which has a typical storage of 4.7 gigabytes. Its primary advantage is its ability to erase and rewrite data. It is most suitable for volatile data such as back ups or collection of files. One advantage also of using this disc is if there are writing error in recording data, the disc can be reused again by erasing the faulty data.

What is DVD-ROM

DVD-ROMDVD-ROM is an optical disc storage that is capable to store atleast 47.7gigabytes.
DVD-ROM has data which can only be read but cannot be written over. It has the same size and form with CD-ROM

What is CD-RW

CD-RWCD-RW(Compact Disc ReWritable) is a rewritable optical disc. It enables you to write over it many times.

What is CD-ROM

CD-ROMCD-ROM (Compact Disc-Read-Only Memory) is an optical disk use for storing large amount of data, the most common is 650 Megabytes. CD-ROMs are popularly used to distribute computer software, including games and multimedia applications, though any data can be stored (up to the capacity limit of a disc).

Wha Are the Types of Computer

desktop computer is an electronic machine computer which convert raw data into meaningful information, made for use on a desk in an office or home and is distinguished from portable computers such as laptops or PDAs.Articles

laptop computer,(also notebook computer), is a small mobile computer, which usually weighs 2-18 pounds (16 kilograms), depending on size, materials, and other factors. A laptop computer is much smaller than a desktop.

Personal Digital Assistant(PDA) are handheld computers, but have become much more versatile over the years. PDAs are also known as pocket computers or palmtop computers.

Palmtop Computers a small and lightweight portable computer, with most of the features of a standard notebook computer but smaller.

Server usually refer to a computer that is dedicated to the task of storing and retrieving large amounts of data. For example, a large computer dedicated to a database may be called a "database server". "File servers" manage a large collection of computer files. "Web servers" process web pages and web applications.

What is Desktop Computer

Desktop ComputerA desktop computer is a personal computer that is designed to fit conveniently on top of a typical office desk and comes in a variety of case styles ranging from large vertical towers to small form factor models that can be tucked behind an LCD monitor.
Desktop computer is used in businesses, schools, and households. It is used for performing office tasks, organizing digital photos, video editing, gaming and Internet access.

What is Notebook Computer

Notebook ComputerNotebook computer, commonly called laptop computer, is a personal computer generally equal or smaller than a briefcase. It is very handy and can easily be transported and conveniently used in temporary spaces such as in class rooms, in libraries, temporary offices, and at meetings. It can be used while you are on plane or navigating through ship. Notebook computer is a small mobile computer, which usually weighs 2-18 pounds depending on size, materials used to make it.