Fourth generation of computer| Features and characteristic of forth generation computers


Fourth generation of computer -: With large scale integrated(LSI) semiconductor circuits called microprocessor getting, developed, there was a revolution in computer technology. With microprocessor, microcomputer was developed.
Forth generation of computer| Features and characteristic of forth generation computers
Forth generation of computer| Features and characteristic of forth generation computers

The following are the technical features of computers of these generations:

(i)Development of microprocessor-: With the development of VLSI now it is possible to design the entire CPU In a single chip of size less than one inch, which is called the microprocessor.

(ii) Input /Output media-: With the use of keyboard, monitor. printer new input/output media were developed that include direct input devices, optical scanning, audio responses, etc.

(iii) Semiconductor internal memory-: In the fourth generation in place of magnetic memory semiconductor made internal memory used. These memories were fast in speed, small in size and cheaper in cost.

(iv) Modern secondary memory-: With magnetic disk as secondary memory new secondary memories magnetic bubble, the floppy disk was used.

(v) Miniature size-: With the use of VLSI and microprocessor now it is possible to design thousands of components of circuits that have drastically reduced the size of computers. Now typewriter size microcomputer is available. 

(vi) Speed-: Computer of these generations were faster than previous generations. These computers can execute tens of millions of instruction per second.

(vii) Use of improved high-level language-: New standard high-level language like C++, KLI, RPG, SQL were developed.

(viii) Cost-: Cost of microcomputer also called personal computer or PC were much less than the cost of all previous generation computers.

(x) Development of application software-: Due to the increasing use of computers specific software for different fields was developed. Word processor, spreadsheet, database management system was developed that made the PC's a powerful tool for both homes and offices. 

Examples-: Major computers of these generations include CRAY2, CRAY Y-MP, CRAY Y-MPC, IBM, PS12150.

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