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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 5200 vacuum tubes.
Features of First Generation Computer
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,
Magnetic tape
Card Feeders, etc.
Features of Second Generation Computer
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

