Basic knowledge of Computer 

Q. What is computer ?

Ans:- Computer is the huge data processing machine, which can do store more and more data .             or

» It is an electronic device.        or

» computer is a common operating machine purposely used for technological and               educational research.

Full form of Computer.

C- Common

O- Operating

M- Machine

P- Purposely 

U- used

T- Technological

E- Educational

R- Research

~ Father of computer - CHALES BABBAGE 

~First computer – Abacus \ lnaic 

Types of Monitor

1. CRT- Cathode Ray tube

2. LCD- Liquid Crystal Display

3. LED- Light Emitting Diode

Main parts of computer.

    

CPU- Control Processing Unit  (Brain of Computer) 

Monitor 

Keyboard 

Mouse

Basic shortcut key 

Copy - Ctrl+C

Cut - Ctrl+x

Pest - Ctrl+v

Select all - Ctrl+A

Undo - Ctrl +Z

Redo - Ctrl +Y

Close any program - Alt + F⁴

F1 TO F12 USES OF SHORTCUT

F1 – All soft ware help open 

F2 – file rename press 

»   All ms-word/excel document open – Alt + Ctrl + f2

» Print preview of shortcut – Ctrl + f2

F3 - Case change 

F4 – Address bar 

Alt + f4 – Open windows close / No windows activate after shut down 

F5 – Windows /Page refresh 

Ms word in use F5  press – find/ replace 

F6 – ms word/ excel two file open one by  one see :- Ctrl + Shift + F6 press

F7 – ms word spelling check  

Related word – Shift + F7

F8 – Windows installing timing 

F9 – formula refresh 

F10 – Menu bar open 

Ms word/ excel  without mouse use press – F10 

F11 – Press f11 to exit full screen 

Excel chart shortcut – F11

F12 – ms word / excel press file save option 

» Ms word in press – Ctrl + F12 – new file open option 

» Ms word / excel print option shortcut – Shift + Ctrl + F12