FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A multitasking operating system may manage various computer resources like I/O devices, RAM, hard disk, CPU, and others. Users can run many programs simultaneously, like an internet browser, games, MS Excel, PowerPoint, and other utilities.

Detailed explanation-2: -Through the use of regular interruption signals, the OS can prioritise and juggle the requests made to the processor. This gives the illusion that the CPU is actually dealing with more than one program or task at once (multitasking). Errors are spotted and usually dealt with without needing to alert the user.

Detailed explanation-3: -Multitasking in an OS enables a user to execute multiple computer tasks at the same time. Processes that hold common processing resources, such as a CPU, are known as many tasks. The operating system remembers where you are in these jobs and lets you switch between them without data being lost.

Detailed explanation-4: -Since main memory is too small to run all the processes, the operating system uses multiprocessing to allocate use of the main memory and the CPU . Multiprocessing can be used only when there is more than one processor in the system.

Detailed explanation-5: -The operating system determines how much memory the program requires, and allocates enough pages to hold it and its documents. When the program is closed, the allocated pages are freed up for use by other programs.