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Different computer models used by the operating system with a different architecture and capabilities. For their work require different resources.
The operating system is usually stored in an external computer memory, disk space. When you turn off the computer, it is read from the disk space and is located in the RAM. This process is called the operating system loads. Analysis and execution of user commands, including the loading of finished programs from the files in the operating memory and run, carries out the shell of the operating system.
The operating system functions include:
- Implementation of the dialogue with users and
- input and output, and data management
- planning and organization of the treatment process programs
- the allocation of resources (memory and cache subsystem, the processor, peripherals)
- launch programs for execution
- all sorts of auxiliary operations services
- the transfer of information between the various internal devices
- software support for the work of peripherals (display, keyboard, disk drives, printers, etc. ).
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