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.