Generation of Computer
First Generation of Computers (1942-1955)
The period of the first generation was 1942-1956. This generation computer used vacuum tubes as the basic components for memory and circuitry for Central Processing Unit. The two notable machines of this era were the UNIVAC and ENIAC machines – the UNIVAC is the first-ever commercial computer which was purchased in 1951 by a business – the US Census Bureau. The computers in this generation used machine code as a programming language. These computers were limited to solving one problem at a time. The input was based on punched cards and paper tape.