The computers of electronic age are further divided into 5 generation on the basis of technology used by the computer. The different generations are:
i) First Generation of computer(1940-1956)
ii) Second generation of computers(1956-1963)
iii) Third generation of computers(1964-1971)
iv) Fourth generation of computers(1971-present)
v) Fifth generation of computers(Present and Beyond)
i) First Generation of Computers:
1) Technology used: Vacuum tube
2) Operating speed: Millisecond range
3) Programming language used: Machine language
4) Memory used
: Primary memory: Magnetic core memory
: Secondary memory: Magnetic drum, Magnetic tape.
5) I/O device:
Punched card as input device, printing device as output device.
6) Use: Simple mathematical calculation.
7) Computers were extremely large in size, and they required special cooling system. e.g.: ENIVAC, EDVAC, UNIVAC, etc.
2) Operating speed: Millisecond range
3) Programming language used: Machine language
4) Memory used
: Primary memory: Magnetic core memory
: Secondary memory: Magnetic drum, Magnetic tape.
5) I/O device:
Punched card as input device, printing device as output device.
6) Use: Simple mathematical calculation.
7) Computers were extremely large in size, and they required special cooling system. e.g.: ENIVAC, EDVAC, UNIVAC, etc.
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| 1st generation computer(UNIVAC) |
