computer technology

computer basic information

what is a computer ?

computer is an electronic device

which convert data into information   

C = commonly                      commonly operated machine                                                      particularly used for trade , education and                                          research .                                                        O = operated 

M = machine

P = particularly

U = used for

T = trade

E = education and

R = research


             Input...........processing..............output

Input Device

1. Key board
2. Mouse
3. Joy stick
4. Scanner
5. Bar code

ETC.......

Key board

1.  A to Z Alphabet
2.  0 to 9 Numbers
3. Special key Botton Window , Ctrl , Alt , Numbers lock
4. Function Keys F1 to F12 

Mouse

1. Optical Mouse
2. Track Ball Mouse
3. Wireless Mouse

CPU ..... Central processing unit

1. Power supply

2. cards

3. Mother board

4. Hard Drive

5. CD,Rom Drive 

  ETC ......