ICT and Society

Computer generation

First generation (1946-1958)

-Huge, slow, expensive, and often undependable
-1946, Presper Eckert and John Mauchly used vacuum tubes instead of the mechanical switches of the Mark I.
-The ENAIC used a thousand of vacuum tubes.
-ENAIC gave off so much heat that they had to be cooled by gigantic air conditions.

Second Generations (1957-196)

-Made by John Bardeen, William Shockly and Walter Brattain.
-Transistor used to relay and switch electronic signals.
-Transistor was faster, more reliable, smaller and much cheaper than vacuum tube.( 1 transistor = 40 vacuum tube)
-Its also conduct electricity faster and better , gave off virtually no heat.

Third Generation (1965-19700

-Discover by Robert Noyce of Fairchild Corparation and Jack Kibly of Taxes Instrument.
-Replacing such large number of transistor on a single chip.
-It also carries out instructions in billions of a second and more advance.