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UNIVAC
In 1951, John Mauchly and Presper Eckert invented the Universal Automatic
Computer (UNIVAC). This successful invention could handle both numbers and
text. The UNIVAC used 5,200 vacuum tubes. It had a magnetic tape storage system
for data, which was a new technology at the time.
Features of First Generation Computer
Huge in size
Very expensive
Made up of vacuum tubes
Second Generation (1950s)
Second-generation computers, which emerged in
the late 1950s and early 1960s, marked a significant
advancement from the first generation. They replaced
vacuum tubes with transistors that make computers
smaller, faster, and more reliable in comparison to
first-generation computers. These computers used magnetic tapes that offer greater
storage capacity.
During this time, major computer manufacturers started offering various accessories
like Page Printers, Cathode Ray Tube displays, 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
Evolution of Computers 11

