Third Generation:- (System 360 Mainframe from IBM, PDP-8 Mini Computer from Digital Equipment Corporation)
⦁ ICs were used
⦁ Small Scale Integration and Medium Scale Integration technology were implemented in CPU, I/O processors etc.
⦁ Smaller & better performance
⦁ Comparatively lesser cost
⦁ Faster processors
⦁ In the beginning magnetic core memories were used. Later they were replaced by semiconductor memories (RAM & ROM).
⦁ Introduced microprogramming
⦁ Microprogramming, parallel processing (pipelining, multiprocessor system etc),
multiprogramming, multi-user system (time shared system) etc were introduced.
⦁ Operating system software were introduced (efficient sharing of a computer system by several user programs).
⦁ Cache and virtual memories were introduced (Cache memory makes the main memory appear faster than it really is. Virtual memory makes it appear larger).
⦁ High level languages were standardized by ANSI eg. ANSI FORTRAN, ANSI COBOL etc
Database management, multi-user application, online systems like closed loop process control, airline reservation, interactive query systems, automatic industrial control etc emerged during this period.
⦁ ICs were used
⦁ Small Scale Integration and Medium Scale Integration technology were implemented in CPU, I/O processors etc.
⦁ Smaller & better performance
⦁ Comparatively lesser cost
⦁ Faster processors
⦁ In the beginning magnetic core memories were used. Later they were replaced by semiconductor memories (RAM & ROM).
⦁ Microprogramming, parallel processing (pipelining, multiprocessor system etc),
multiprogramming, multi-user system (time shared system) etc were introduced.
⦁ Operating system software were introduced (efficient sharing of a computer system by several user programs).
⦁ Cache and virtual memories were introduced (Cache memory makes the main memory appear faster than it really is. Virtual memory makes it appear larger).
⦁ High level languages were standardized by ANSI eg. ANSI FORTRAN, ANSI COBOL etc
Database management, multi-user application, online systems like closed loop process control, airline reservation, interactive query systems, automatic industrial control etc emerged during this period.
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