Secure Operating Systems

Some articles on secure operating systems, secure operating system, operating systems, system, operating, systems, secure:

Security Architecture - Secure Operating Systems
... One use of the term computer security refers to technology to implement a secure operating system ... developed in the 1980s and used to produce what may be some of the most impenetrable operating systems ever ... is in limited use today, primarily because it imposes some changes to system management and also because it is not widely understood ...
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 ...
Covert Channel - Characteristics
... it is hidden from the access control mechanisms of ultra-high-assurance secure operating systems since it does not use the legitimate data transfer mechanisms of the computer system such ... channels are exceedingly hard to install in real systems, and can often be detected by monitoring system performance in addition, they suffer from a low signal-to-noise ratio and low ... They can also be removed manually with a high degree of assurance from secure systems by well established covert channel analysis strategies ...
Timeline Of Operating Systems
... of events in the history of computer operating systems from 1951 to the current day ... the overall developments, see the History of operating systems ...
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 ...

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