What is CD-ROM Drive and How it Works

CD ROM stands for "Compact Disc Read Only Memory".  A CD-ROM drive is the same size as a floppy disk drive.  It is a storage device that accepts data CD ROM’s (Compact Discs).  It is a box shaped device that fits into the case of the computer. A CD-ROM drive is an optical device which means it uses a laser to record information. Most new computers DVD drives have replaced CD ROM drives. A CD ROM drive will only play CD’s, not...

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What is Floppy Drive and How it Works

Floppy drives are most advanced storage devices and it reads and writes data on floppy disks. Floppy Drive connects to the motherboard with a ribbon (data) cable and also power cable attached to it. Presently new computers do not have this floppy drives because USB flash drives and optical drives have replaced floppy drives in newer systems, it can be added internally to your computer (or) externally with a USB cable. It is a removable media...

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What is Zip Drive and How it Works

Zip Drive introduced by Iomega Corporation in late 1994. Zip drive is a medium portable removable device looks like a floppy drive. A zip drive is needed to read and write 3.5 inch zip disk. Zip Drives are very expensive when compared to coast of other storage devices. ...

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What is Speakers and How it Works

These are connected to the mother board through a cable. Speakers allow you to listen to music and hear sound effects that are played through programs on computer, it usually played through speakers. And also speaker is used to produce beeps by POST (Power-On-Self -Test) to indicate certain results. There are different types of speaker systems available in the market. Some of them are described below. 2.0 Speakers : It is a two speaker...

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What is Keyboard and How it Works

The commonly used input device is a keyboard. It is the most important device for communicating between the operator and the computer. This is connected to the CPU. The keyboard is used to input data and instructions into the computer. A computer keyboard is very much like a standard type writer keyboard with few additional keys. It consists of the standard typewriter keys as well as a numeric keypad and It contains alphabets, digits, special...

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What is Mouse and Types of Mouse

A Mouse is hand held pointing device that allows you to control your computer without having to type in instructions at the keyboard. It connected to computer by a cable. It usually contains two or three buttons. The mouse is kept on a flat surface. When you move the mouse on the flat surface, the mouse pointer also moves in the same direction on the screen. It is used to move the cursor on the screen. And pressing the buttons on the...

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What is Monitor and different types of Monitors

Monitor is also known as VDU (Visual Display Unit) or Screen. It is Similar  to  a  television, monitor  is a commonly used output device. A Keyboard is used to input data and receive massages from the computer. Whatever is typed on keyboard gets displayed on the monitor. The monitor displays text, pictures, graphics and other items from the computer on a screen.  A monitor has its own box which is separated from the...

What is Tablet PC and How it Works

Tablet computers are typically designed to provide similar functionality to desktops except within a portable device. It designed specifically for portability. Note books and tablet PC’s are must utilize an integrated monitor and be capable of operation off an integrated battery or other portable power source. There are generally two formats, a convertible model with an integrated keyboard or a slate style, with a removable keyboard. The...

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What is Personal Digital Assistants (or) Handheld PC

A handheld PC is a very small computer usually weighing less than a pound that you can hold comfortably in your hand or carry in a pocket. A handheld PC is also called a Personal Digital Assistant (PDA). Most of the people use a Personal Digital Assistant to store their schedules and check their e-mail while out of the office. PDAs function as a cellular phone, Web browser, fax, and personal organizer. They also provide handwriting recognition...

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What is Palmtop and How it Works

Palmtop is a hand sized computer. Palmtops have no keyboard but the screen serves both as an input and output device. Palmtops accept handwritten inputs using an electronic pen which can be used to write on a palmtop’s screen. It used as a mobile phone, fax and email purpose.   Operating Systems : Windows CE, Psion OS, Plam OS   ...

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What is Laptops (or) Note book Computers and How it Works

Laptops also known as Note book computers. It consists of a Keyboard flat screen, and power Processor, which weight around 2 Kgs. Notebook and laptops both portable computers that usually feature integral keyboards and monitors. It is generally smaller in size than a desktop computer and larger than a notebook computer. The main purpose of laptop computer is it can be used at the time of traveling. ...

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