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

Typically, which technology is employed as a storage mechanism by hard disk drives?

  1. Laser

  2. Magnetic

  3. Light

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

Hard disk drives store data using magnetic technology - tiny magnetic domains on spinning platers represent binary data. Read/write heads change or detect these magnetic patterns. This is different from optical storage (laser, like CDs/DVDs) or solid-state storage (electrical charge).

Multiple choice

'DOS' floppy disk does not have

  1. Boot record

  2. File allocation table

  3. Root directory

  4. Virtual memory

  5. BIOS
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DOS floppy disks contain a Boot Record, File Allocation Table (FAT), and Root Directory as essential components. Virtual memory is a feature of operating systems and modern RAM management, not a physical component of floppy disks which have fixed storage capacity.

Multiple choice

Identify the false statement.

  1. You can play DVD with your computer's CD ROM but cannot write a DVD using CD ROM.

  2. You can play DVD only if your computer has a DVD ROM.

  3. You can play DVD video file in your computer even without a DVD ROM, by downloading DVD video file through internet.

  4. You can play a DVD file only if you have a DVD player software in your computer.
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice

Choose the correct abbreviation.

ROM

  1. Remote On Memory

  2. Remote Operation Machine

  3. Read Only Memory

  4. Read On Machine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ROM is a standard computer hardware abbreviation that stands for Read Only Memory. It is a type of non-volatile memory used in computers and other electronic devices to store permanent or semi-permanent data that cannot be modified after manufacture.

Multiple choice

Choose the correct abbreviation.

RAM

  1. Rapid Access Memory

  2. Random Access Medium

  3. Robust Access Material

  4. Random Access Memory
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

RAM stands for Random Access Memory, which is a type of computer memory that allows data to be read and written in any order. The other options (Rapid Access Memory, Random Access Medium, Robust Access Material) are incorrect.