What is the Computer ?
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Computer is a Electronic High speed Device.
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Computer is a Electronic Data Processing Device.
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Computer is an electronic device that is designed to work with Information.
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A computer is generally defined as a programmable machine.
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Computer is used to store the data, as per given instructions it gives results quickly and accurately.
Data :
Data is a raw material of information.
Information :
Information :
Proper collection of the data is called information.
Main parts of the Computer ?
A computer is really a system of many parts working together. The physical parts, which you can see and touch, are collectively called hardware.
The following illustration shows the most common hardware in a desktop computer system.
1. Monitor
A monitor displays information in visual form, using text and graphics. The portion of the monitor that displays the information is called the screen. Like a television screen, a computer screen can show still or moving pictures.
2. CPU
This is where everything comes together to work. The system box holds the central processing unit to act as the brains of the computer. The unit contains the motherboard which is the main circuitry for the system. The power supply for the main computer is located in the unit. All the other parts including the monitor, mouse, keyboard, speakers, and others join at the unit to become a functional system.
3. KEY BOARD
A keyboard is used mainly for typing text into your computer. Like the keyboard on a typewriter, it has keys for letters and numbers, but it also has special keys:
The function keys, found on the top row, perform different functions depending on where they are used.
The numeric keypad, located on the right side of most keyboards, allows you to enter numbers quickly.
The navigation keys, such as the arrow keys, allow you to move your position within a document or webpage.
4. Mouse
A mouse is a small device used to point to and select items on your computer screen. Although mice come in many shapes, the typical mouse does look a bit like an actual mouse. It's small, oblong, and connected to the system unit by a long wire that resembles a tail.
A mouse usually has two buttons:
A primary button (usually the left button) and a secondary button. Many mice also have a wheel between the two buttons, which allows you to scroll smoothly through screens of information.
Other parts of the Computer
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