What is computer…?
A computer is a machine that processes instructions to calculate data, store and manage information. Computers are made up of hardware and software. The word computer is derived from the Latin word “computare”. It means to calculate or to calculate.
On the basis of working system, computer is divided into three parts.
- Input device
- process device
- output device
- Input device – The parts of a computer that provide instructions and information to the computer.
Example –
- Keyboard.
- Mouse.
- Touchpad.
- Scanner.
- Digital Camera. device
- Microphone.
- Joystick.
- Graphic Tablet.
What is keyboard..?
Keyboard -Computer is a typing machine which is used to insert the text in the computer.
Type of keyboard-
Gaming keyboard
USB keyboard
Mechanical keyboard
Multimedia keyboard
Hand keyboard
Wireless keyboard
Flexible keyboard
The following keys are usually found in the keyboard
Esc | Escap button |
| F1 to F12 | Function keys |
| !,@,#,$,%,^,&,*,(),+,=,- | Special charector keys |
| A To Z a to z | Alphabate keys |
 | Tab Key |
 | Shift keys |
 | Caps lock keys |
 | Control key |
 | Alternate key |
 | Window key |
 | Space bae key |
 | Menu key |
 | Enter key |
 | Arrow key |
 | Backspace key |
 | Num lock key |
| 0 To 9 | Number keys |
| * | Multiplication key |
| / | Divide or Slash |
| + | Addition |
| – | Substraction |
2. Process device – The part of a computer that is used of process tasks on given instruction that is called process device.
Example – CPU
3. output device – The part of computer we get our result that is called output device.
Example –
- Monitor.
- Printer.
- Headphones.
- Computer Speakers.
- Projector.
- GPS.
- Sound Card.
- Video Card.
Keyboard –
