FUNDAMENTALS OF COMPUTER

OPERATING SYSTEMS FOR COMPUTERS

COMPUTER OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is POST?
A
Power on Sequence Test-is the diagnostic testing of the keyboard, random access memory, disk drives, and other hardware when the PC is turned on
B
Please Operate Speedy Thanks-is the diagnostic testing of the keyboard, random access memory, disk drives, and other hardware when the PC is turned on
C
Power on Self Test-is the diagnostic testing of the keyboard, random access memory, disk drives, and other hardware when the PC is turned on
D
Power on Self Test-is the diagnostic testing of the human body when it wakes from sleep.
Explanation: 

Detailed explanation-1: -Answer: When power is turned on, POST (Power-On Self-Test) is the diagnostic testing sequence that a computer’s basic input/output system (or “starting program") runs to determine if the computer keyboard, random access memory, disk drives, and other hardware are working correctly.

Detailed explanation-2: -A power-on self-test (POST) is a set of routines performed by firmware or software immediately after a computer is powered on, to determine if the hardware is working as expected.

Detailed explanation-3: -The POST (power on self-test) is a set of procedures that a computer runs through each time it is turned on. It ensures that all of the system’s hardware is working properly before trying to load the operating system. If the computer does not pass POST, it will not boot.

Detailed explanation-4: -Overview of the Power On Self-Test (POST) Process 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-5: -When power is turned on, POST is the diagnostic testing sequence that a computer’s basic input/output system (BIOS) runs to determine if the computer keyboard, random access memory (RAM i.e. DIMM’s), disk drives and other hardware are working correctly.

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