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UNIVAC
UNIVAC or Universal Automatic Computer was another successful invention of John Mauchly
and Presper Eckert in 1951, which could handle both numeric and textual information.
UNIVAC
The UNIVAC had 5,200 vacuum tubes.
Features of First Generation Computers
Huge in size.
Very expensive.
Made up of vacuum tubes.
Vacuum tube
Second Generation (1950s)
After 1955, use of transistors and magnetic tapes
changed the image of the electronic computer.
During this period, the major computer manufacturers
began to offer a range of accessories such as: Page
Printers, Cathode Ray-Tube display, Card Feeders, etc. Magnetic tape
Features of Second Generation Computers
Made up of transistors.
Magnetic tapes were used to store data.
Small in size and less expensive than the first generation computer.
Faster and reliable.
Transistor
Evolution of Computers 11

