Computer is an electronic Device which convert data into useful information . Computers are very fast and process the information using fast speed processors . A basic computer can be divided into different parts . Input/Output Devices , Central processing Units ,Output Devices. Input Devices are devices which are used to enter the data into a computer .Central Processing Unit (CPU) is used to process or convert data into useful information .Output devices are devices which are used to obtain the information either in softcopy or hard copy .Examples of Input Devices are keyboard , mouse ,pen Tab ,Stylus Joystick etc. Examples of Output Devices are Monitor(softcopy) , Printer(Hardcopy).
Parts of computer
| CPU | Monitor | Input/Output Devices |
Input Devices are devices used to input the Data to the computer.
| Keyboard | Mouse | Joystick | Pen Tab | Stylus |
Types of Computer
The computers are classified on the basis of the size and speed. Depending on the size of the computer they are divided into 4 types .
- Mainframe Computers
- Super Computers
- Personal Computers
- Laptop computers
Input /Output Devices
The Keyboard is the simplest form of an input device . A Keyboard consists of a number of Keys with alphabets , numbers , special symbols and some function keys.
A Mouse is a device which consists of a 2 buttons one on the left and one on the right . a rolling type of button located in the middle which helps o scroll the screen.
The Woods are lovely dark and deep
I have many promises to keep
Miles to go before I sleep
And miles to go before I sleep.”