A project on Mobiles search engine creating using PHP CSC engineering

An operating system (OS) is software consisting of programs and data that runs on computers and manages computer hardware resources and provides common services for efficient execution of various application software.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between application programs and the computer hardware, although the application code is usually executed directly by the hardware and will frequently call the OS or be interrupted by it.

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