OPERATING SYSTEMS. An operating system (OS) is an interface between hardware and user which is responsible for the management and coordination of activities.

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Presentation transcript:

OPERATING SYSTEMS

An operating system (OS) is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of the computer that acts as a host for computing application run on the machine.

Examples of operating systems:

Microsoft Windows (OS) Windows 7 Ultimate Desktop Microsoft Windows is a family of proprietary operating systems that originated as an add-on to the older MS-DOS operating system for the IBM- PC.

Mac OS X Mac OS X Snow Leopard Desktop Mac OS X is a line of partially proprietary, graphical operating systems developed, marketed, and sold by Apple Inc., the latest of which is pre-loaded on all currently shipping Macintosh computers. Mac OS X Mac OS X Snow Leopard Desktop Mac OS X is a line of partially proprietary, graphical operating systems developed, marketed, and sold by Apple Inc., the latest of which is pre-loaded on all currently shipping Macintosh computers.

Ken Thompson wrote B, mainly based on BCPL, which he used to write Unix, based on his experience in the MULTICS project.

Google Chrome Google Chrome OS Desktop Google Chrome OS is an open-source-operating system designed by Google to work exclusively with web applications.. Google Chrome Google Chrome OS Desktop Google Chrome OS is an open-source-operating system designed by Google to work exclusively with web applications..

Plan 9 Ken Thompson, Dennis Ritchie and Douglas Mcllrov at Bell Labs designed and developed the C programming language to build the operating system Unix. Plan 9 Ken Thompson, Dennis Ritchie and Douglas Mcllrov at Bell Labs designed and developed the C programming language to build the operating system Unix.