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Dec 28, 2020

UGC NET-PAPER -1-Computer

 UGC NET paper 1

computer

Dipendu Mondal 

Q - What are the main features of third generation computers?


1. Electronic Components - ICs are introduced as the main electronic component in this generation of computers.

2. Input system - Here the keyboard is used as the input device.

3. Output system - The system of the monitor starts as an output device

4. Shape - They were much smaller in size than the first and second generation s so they could be carried.

5. Cold heat control - In this case also the room with cold heat control was needed.

6. Programming Language - The C language is introduced here as the language of the program.

7. Speed ​​- This generation of computers could do calculations in micro seconds.

8. Magnetic disks were used to store storage data.

9. Maintenance - Its maintenance cost was much less as the mechanical disturbances were less than the previous generations.


Q - What are the main features of the fourth generation computer?

1. Electronic Components - The main components of this generation of computer were LSI and VLSI.

2. Input system - Keyboard and mouse were used as input devices.


3. Size - Computers are small in size so they can be easily carried from one place to another.

4. Speed- This generation of computers work in microseconds.

5. Output system - Monitors, printers, sound systems, etc. were used as output devices.

6. Programming Language- This generation started using Fourth Generation Language (4GL).

7. Cold heat control - Teacher control was not required.

8. Maintenance - Due to the use of high quality technology, mechanical disturbances were much less in this case, so maintenance was not usually required very much.

9. Multitasking and multi-user system - This generation of computers to start many tasks simultaneously. This allows multiple users to control their activities at once.