Which program is systematically executed from ROM the instant a standard personal computer is turned on? MCQ with Answer and Explanation

Which program is systematically executed from ROM the instant a standard personal computer is turned on?
A. POST (Power-On Self-Test)
B. Microsoft Word
C. Disk Defragmenter
D. The Windows Task Manager
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.

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Practice More Memory and Storage Devices Questions

Question #1
What size of storage data block is represented exactly by the term 'Kilobyte' (KB) in pure binary-scale computation systems?
A. 2048 Bytes
B. 1000 Bytes
C. 1024 Bytes
D. 512 Bytes

Correct Answer: Option C


Explanation:
In binary computer notation, a Kilobyte is calculated as $2^{10}$ bytes, which equals exactly 1024 bytes.

This question belongs to: Computer Memory and Storage Devices
Question #2
What does the acronym 'SDRAM' stand for?
A. Single Data Rate RAM
B. Synchronous Data RAM
C. Synchronous Dynamic Random Access Memory
D. Static Dynamic RAM

Correct Answer: Option C


Explanation:
SDRAM stands for Synchronous Dynamic Random Access Memory, which synchronizes with the system clock for faster data transfer compared to asynchronous DRAM.

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a common interface for optical drives?
A. SCSI
B. All of the above
C. IDE
D. SATA

Correct Answer: Option B


Explanation:
Optical drives have been available with SATA, IDE, and SCSI interfaces, though SATA is the most common in modern systems.

This question belongs to: Computer Memory and Storage Devices