Which program is systematically executed from ROM the instant a standard personal computer is turned on?
A. POST (Power-On Self-Test)
B. The Windows Task Manager
C. Disk Defragmenter
D. Microsoft Word
Answer: Option A
Solution (By JKSSB Mock Tests)
The POST (Power-On Self-Test) routine is hardcoded into the system BIOS/UEFI ROM and runs instantly at startup to verify that essential hardware components are operational.
What hardware feature on an internal motherboard controls the synchronization and flow of data commands arriving from the system RAM to the processor cores?
Explanation:
The memory controller (either standalone on the chipset or integrated directly inside modern CPU dies) manages the electrical signals and data timing for reading and writing to system RAM.
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