1 reply
dharmesh
over 9 years ago

Operating system generation is divided in 5 eras.
- 1942-1954. Vaccum tube based.
- 1952-1964 Transistor based
- 1964-1972. Integrated Circuit based
- 1972-1990. VLSI microprocessor based.
- 1990-onwards.ULSI microprocessor based
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