Mainframe Operating Systems

Some articles on operating systems, operating, mainframe, mainframe operating systems, operating system, mainframes, systems:

Timeline Of Operating Systems
... This article presents a timeline of events in the history of computer operating systems from 1951 to the current day ... a narrative explaining the overall developments, see the History of operating systems ...
Operating Ratio
... The operating ratio is a financial term defined as a company's operating expenses as a percentage of revenue ... In railroading, an operating ratio of 80 or lower is considered desirable ... The operating ratio can be used to determine the efficiency of a company's management by comparing operating expenses to net sales ...
Operating Leverage
... Operating leverage is a measure of how revenue growth translates into growth in operating income.leverage, and of how risky (volatile) a company's operating income is ...
Operating System - History - Mainframes
... Main article Mainframe computer See also History of IBM mainframe operating systems Through the 1950s, many major features were pioneered in the field of operating systems, including batch ... in application software at the option of application programmers, rather than in a separate operating system used by all applications ... In 1959 the SHARE Operating System was released as an integrated utility for the IBM 704, and later in the 709 and 7090 mainframes, although it was quickly supplanted by IBSYS/IBJOB on the 709 ...
History Of IBM Mainframe Operating Systems
... The history of operating systems running on IBM mainframes is a notable chapter of history of mainframe operating systems, because of IBM's long-standing position as the world's largest hardware ... Arguably the operating systems which IBM supplied to customers for use on its early mainframes have seldom been very innovative, except for the virtual machine systems ... proven technology has generally given potential users the confidence to adopt new IBM systems fairly quickly ...

Famous quotes containing the words systems and/or operating:

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