FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -When the computer is first turned on, all the components must be tested and initialized by the BIOS, and the operating system must be loaded into memory. This is commonly referred to as POST (Power-On Self-Test).

Detailed explanation-2: -During the boot process, the system configures all devices found in the machine and initializes other basic software required for the system to operate (such as the Logical Volume Manager). At the end of this process, the file systems are mounted and ready for use.

Detailed explanation-3: -A Power-On Self-Test (POST) is an operation initiated by a computer after it has been turned on but before it boots up the OS.

Detailed explanation-4: -1. Short for power-on self-test, the POST is a test the computer must complete to verify all hardware is working properly before starting the remainder of the boot process.