Speed – Relatively fast as compared to first generation, thousand instructions per second.Size – Smaller than first generation Computers.For programming purpose besides machine and assembly languages, high level languages were also used like FORTRAN, COBOL and BASIC etc. For data storage magnetic tapes and magnetic tapes and magnetic disks were used. Vaccum tubes are replaced by transistors. The invention of transistor lead to start the second generation of computers. Example – ENIAC, UNIVAC, Mark –I,mark-III, IBM 700 series, IBM 700 series ,IBM 701 series IBM 709 series etc.Ģ.Second Generation of Computers (1955 to 1964) – Based on Transistor.Output Media – Punched card & printed reports.Input Media – Punched cards & paper tape.secondary Memory – Magnetic drum & magnetic tape.Power– high power Consumption and it generated much heat.ī) Trends and Developments in Computer Hardware.Reliability – high failure rate, Failure of circuits per second.Language– Machine and Assembly Language.Speed – slow speed, hundred instructions per second.A list of popular first generation computers ENIAC, UNIVAC,EDVAC, and EDSAC.Ī) Computer Characteristics & Capabilities – They uses two types of computer programming languages, machine language and assembly language. Electronic time per calculation ranged from 0.1 milliseconds to1 milliseconds. Magnetic drums are also used for storage. For memory devices punch card and paper tapes were used. The first generation computers were used vaccum tubes as the main electronic part.
First Generation Computers (1942 to 1954) – Based on Vacuum Tubes
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