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Accounting

تعریف سیستم عامل

1- Definition of Operating System

... یک ماشین توسعه یافته ( Extended Machine ) Virtual Machine ( Virtual Machine ) To enable them to provide users with easier programming, and computer hardware complexities involved not . Generally, duties include operating systems : * Efficient use of resources and avoid wasting them * Allocation and release of resources * Managing queues and scheduling of resources * Accounting ( Accounting ) Resource * Security ( security ) * Create, delete and manage processes * Create mechanisms for communication and synchronization between processes, they * Managing files and folders * The main memory management and Accessories * Establishing multiple access ( Multiaccess ) And implement a process ( Concurrent ) Process * Resource sharing ( Resource Sharing ) * Determine strategies for handling deadlocks ( deadlock ) ها * Avoid competitive ( Race Condition ) Or interfere with the locking ( Interlock ) Process * جلوگیر...