General Knowledge Of Computer

1. Computers are used for many different kinds of work.
2. Computer process data.
3. The four stages in the operation of a computer are input, processing,output and storage.
4. The brain of a computer is called Processor.
5. Computer can not think themselves. They follow instructions called programs or software.
6. The hardware components of a small computer system are the system unit,the keyboard, the monitor and the printer.
7. Computers have two types of Memory: Temporary memory and Permanent memory.
8. The most common types of permanent storage are the Floppy disks, the hard disks and the CD-RAMs.
9. The monitor is used to display information.
10. The printer is used to produce hard copies of information.
11. You boot the computer by turning on the power.
12. When using a computer laboratory, there are number of safety rules to be observed.
13. Handle the computers and the floppy disks with care.
14. Beware of computer viruses.
15. Before the invention of modern computers, man used many different mechanical tools for counting and calculation.
16. The ideas of Charles Babbage have been used to make modern computers.
17. Many modern devices use microchips.
18. The keyboard looks like a typewriter with the addition of function keys, special keys, keypad keys and cursor keys.
19. You can use Typing Tutor to learn to use the keyboard.