Operating System, Software that manages computer hardware and software and allows users to interact with the computer., Hardware, The physical parts of a computer, such as the monitor, keyboard, processor, and memory., Software, Programs and applications that run on a computer., Memory (RAM), Temporary storage used by the computer while programs are running., Process, A running program or task inside the operating system., Open-source, Software whose source code can be viewed, modified, and shared by anyone., Multitasking, The ability to run multiple programs at the same time., Security, Protection of the computer and data from viruses, hackers, and unauthorized access.

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