Computer Knowledge

Computer Memory and Storage

2,477 Questions

Computer memory and storage questions test foundational knowledge of hardware, cache mapping, and data transfer mechanisms. Key areas include Direct Memory Access, analog recording, and RAID levels. This section is essential for candidates preparing for banking and government computer proficiency tests.

Cache memory mappingDirect memory accessRAID storage levelsHard disk technologyOptical media storageMemory addresses

Computer Memory and Storage Questions

Multiple choice

CD-ROM is a kind of

  1. optical disk

  2. magneto-optical disk

  3. magnetic disk

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CD-ROM (Compact Disc Read-Only Memory) uses optical technology - a laser reads microscopic pits on the disc surface. This distinguishes it from magnetic disks (like floppy/hard disks) that use magnetic patterns. Magneto-optical disks combine both technologies. CD-ROM is the classic example of optical storage technology.

Multiple choice

Which of the following holds microprogram?

  1. Core memory

  2. ROM

  3. RAM

  4. Control memory
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Microprograms are low-level instructions stored in control memory, but given the available options, ROM is the most appropriate answer. Microprograms are firmware-level instructions that control the CPU's operation at a very basic level. While the most precise answer would be 'control memory,' ROM (Read-Only Memory) is where microprograms are permanently stored as they are fundamental instructions that should not change. Core memory and RAM are volatile and not suitable for permanent microprogram storage.

Multiple choice

EPROM can be used for

  1. erasing the contents of ROM

  2. reconstructing the contents of ROM

  3. erasing and reconstructing the contents of ROM

  4. duplicating ROM

  5. All of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 EPROM can be used for erasing and reconstructing the contents of ROM.