Friday, May 4, 2012

COMPONENTS OF COMPUTER



a. Major components:
                1. Case & SMPS
                2. Motherboard
                3. Processor with processor fan
                4. RAM
                5. Monitor
                6. HDD
                7. FDD
                8. CD/VCD ROM Drive
                9. Keyboard
                10. Mouse
b. Optional Components:
                1. Speaker
                2. Modem
                3. NIC (Network Interface Card)
                4. Printer
                5. Scanner
                6. Web camera (Web-cam)
                7. Headphone & microphone
                8. TV card, etc.

a) On the basis of Brand/Manufacturer:



ii.                    IBM Computer (International Business Machine)
-> Windows, Linux, UNIX
                                ii.             IBM Compatible Computer
                                                -> Dell, Compaq, Acer, Sony, Toshiba, HP, etc.
                                iii.            Apple/Macintosh Computer
                                                -> Mac OS
                                iv.            Assembled computer

a) On the basis of function or working principle



i.                     Analog computer
ii.                    Digital computer
iii.                  Hybrid computer (Combination of Analog & Digital)

TYPES OF COMPUTER


a)       On the basis of size:
i. Super computer
-> Used in Space research, weather forecasting, designing complicated machines as supersonic jet.
                                                -> The largest, fastest and the most expensive computer.
                                ii. Mainframe computer:
                                                -> Large in size, very high speed.
-> More than 100 people can work at a time through more than 100 terminals.
-> Used in large scale organization, government offices, institute of engineering, etc.
                                iii. Minicomputer:
                                                -> Medium in size.
                                                -> Used in data processing, programming.
                                                -> Upto 10 terminals.
                                iv. Micro computer:
                                                -> Personal or home computer.
                                                -> Used in home & offices
                                                -> Desktop, Laptop, Palmtop, etc.    

3) OUT PUT


 Out put is the processed data or result given by the processor after data processing. There are two types of output devices:
i)         Permanent Output Device: Printer is permanent output device. It provides us Hard copy of data as output.
ii)     Temporary Output Device: Monitor, projector, speaker are temporary output devices. They provide us Soft copy of data as output.