What is Operating System? Write its two functions.
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An operating system has three main functions: (1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
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An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.
Explanation:
functions:
Memory management: The operating system allocates memory for a requesting process and frees the memory when the process is completed.
Device management: The operating system is responsible to allocate input and output devices as and when they are required by any process.
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