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Operating Systems - David Vernon

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History of <strong>Operating</strong> <strong>Systems</strong><br />

Third generation computers (1965-80)<br />

– Capable of running many jobs ‘at once’<br />

– multiprogramming<br />

– minimise the idle time cause by slow I/O<br />

component of a typical job<br />

Job 3<br />

Job 2<br />

Job 1<br />

<strong>Operating</strong><br />

system<br />

Memory partitions<br />

Copyright © 2007 <strong>David</strong> <strong>Vernon</strong> (www.vernon.eu)

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