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Classification and basic properties of operating systems

Give the definition of the operating system. Classification and basic properties of operating systems. Functional components of the operating system, the architecture of the operating system. 

1.      Operating system detection.

Operating system (OS) - a set of programs, which control the operation of all devices, PC and the process of implementing PP(application programs). The OS is responsible for execution of such operations, as control the functionality of the PC; the procedure bootstrap; management of all devices PC: file system management; the user interacts with the PC; loading and running of application programs; the allocation of resources PC, such, as an operational pam’Yat, CPU time and peripheral devices from one application.

2.      Classification and basic properties of OS.

OS  classified by purpose, the task processing mode, according to the method of interaction with the system.

1.      Wasps are divided into adnotation and multi-tasking. Adnotation (DOS) can perform at the same time no more than one task, and multitasking (Windows 98/ME) able to simultaneously manage multiple processes, separating between them .power computer’'yutera.

 

 

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2.      Another criterion - the number OS users. The OS is designed for obslugovuvannya user or is designed to work with a group of users at the same time. A first example may serve the same Windows 98/M E, and the second - Windows NT/2000.

3.      The bit. 16-bit OS (DOS, Windows 3.1, Windows 3.11) gone with the advent of 32-bit OS (Windows 98/ME). In our time apply 64- bit (Windows XP, Windows 7, Linux, Mac OS ), and planned the release of Windows 8 is not expected until 2011 -2012 years. The main characteristics and features according to officially unconfirmed information, the main feature of Windows 8 will support 128-bit (128-bit) architecture. In October 2009 year’appeared unofficial information, what Windows developers 8 at this point, leading the introduction of in IA-128 full binary compatibility with existing 64- bit instructions. Established agreements with leading manufacturers of processors and other hardware, including Intel, AMD, Hewlett-Packard and IBM. In 

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