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Was a time of vacuum tube technology and computers the size of classrooms. Each computer was unique in structure and purpose.
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Were developed to meet the needs of new markets, goverment and bussiness researchers. Computers were still expensive. The job of Computer operator was born.
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They were designed with faster CPUs. Multiprogramming was invented
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It improved the cost/perfomance ratio of computer components. The concep of firmware was born to give name to new functions the operating systems needed. Multiprocessing was created.
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The computers started to need a networking capability. A lot of mulmedia applications were introduced.
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The need for operating systems to offer improved reliability, flexiblity and speed was emphasized. Virtualization was createad to meet this types of requirements
