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

The problem of thrashing is affected significantly by

  1. program structure

  2. program size

  3. primary-storage size

  4. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thrashing occurs when a system spends more time swapping pages than executing instructions. This is heavily influenced by the program structure (e.g., locality of reference), as poor structure leads to frequent page faults.

Multiple choice

TM is more powerful than FSM because

  1. tape movement is confined to one direction

  2. it has no finite state control

  3. it has the capability to remember arbitrary long sequences of input symbols

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A Turing Machine (TM) has an infinite tape that allows it to read, write, and move in both directions, providing it with memory that is not limited by the number of states. FSMs have a fixed, finite amount of memory determined by their state count.

Multiple choice

Storage device may be of

  1. only sequential type

  2. only direct access type

  3. either (1) or (2)

  4. none of these

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

Storage devices are categorized by how they access data. Sequential access (like tape) and direct access (like disk) are the two primary methods.

Multiple choice

RAM stands for

  1. random access memory

  2. read access memory

  3. random and memory

  4. None of these

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

RAM is the standard acronym for Random Access Memory, which is the volatile memory used by a computer to store data currently in use.

Multiple choice

ROM stands for

  1. read or memory

  2. read only memory

  3. random only memory

  4. None of these

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

ROM stands for Read Only Memory, which is non-volatile memory used to store firmware or startup instructions.

Multiple choice

What is the meaning of hard copy?

  1. raw material

  2. superior material

  3. printed computer output

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

A hard copy is a physical, printed version of information that exists in a digital format on a computer.

Multiple choice

Which memory is a semiconductor memory?

  1. SRAM

  2. ROM

  3. DRAM

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

ROM (Read Only Memory), SRAM(static random accesss memory) and DRAM(dynamic RAM) all are types of semiconductor memories.

Multiple choice

Which of the following is not related to computer?

  1. MDR (Memory data register)

  2. MICR (Magnetic Ink Character Recognition)

  3. RAM (Random Access Memory)

  4. LCA (Life Cycle Assessment )

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

It is a tool for the systematic evaluation of the environmental aspects of a product through all stages of its life cycle.