Computer Generations

                    

               

          Hello Guys ! Today we discuss about Computer Generations . If we want to learn about Technology then starts with basic knowledge that's about it's different Generations . According to Technical history , Computer is divided in 5 Generations .

                       Every generation has different features with many different technology used in it .Let's start discussing feature of these different generations.

   First Generation Computer :- 

• 1st Generation , starts in 1940 and ends in 1956 .

• In these 16 years of 1st generation,  Scientist  use Vacuum Tubes in systems. Because of vacuum tubes systems became so large in size . 

• In these systems , Scientist use Punch card as an Input Device 

• Magnetic Tape and Punch cards used as Memory .

• Some example of this generation computer systems are MARK-1 , ENIAC , UNIVAC -1 .

    Second Generation Computer :-

• 2nd Generation , starts in 1956 and complete in 1963 . 

• In these 8 years of 2nd generation , Scientist use Transistor on the place of vacuum tubes . By the use of Transistors , size of systems became small as compare to 1st generation computer . 

• In this system , Punch card and Magnetic Tape used as an Input device .

• Magnetic Tape used as a Memory . 

• Some example of 2nd generation computer systems are IBM -700 , IBM-1401.

    Third Generation Computer :- 

•  It starts in 1963 and ends in 1971 .

•  In these 9 years of 3rd generation , Integrated Circuits Technology used by these systems .    By  this technology computers are reduced in size .

•  In this system , Input device is Keyboard with Memory as  Magnetic Disk .

•  Some examples of 3rd generation are IBM-360, IBM -370 , NAV-7500 .

     Fourth Generation Computer :-

•  4th Generation starts from 1971 and presently in use .

•  In this generation ,we use Microprocessor on the place of IC's , by which size of Computer  system is reduced .

•  In this system , we use devices like Mouse , Keyboard , Scanner  , Video and Sound .

•  Memory of 4th Generation computer system is High End Magnetic Disk . 

•  Examples of 4th generation are Modern day PC's , Laptop , Palmtop .

    Fifth Generation Computer :-

• 5th Generation starts in 1989 and continue in working for future use . 

• In this generation we use Artificial Intelligence . 

• In this system ,we use devices like robot who understands Human voice and expressions . 

• In this generation Tiny Memory cards are use in memory space. 

• Example of 5th generation computer are PARAM , CRAY-1 , ANURAG .