Computer Knowledge

Computer Memory and Storage

2,121 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
  1. to free memory space

  2. to allocate memory space

  3. both of the above

  4. none of the above

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

The calloc function stands for 'contiguous allocation' and is used to allocate memory space for an array of elements, initializing them to zero.

Multiple choice
  1. CPU

  2. Monitor

  3. USER

  4. All the above

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

The CPU (Central Processing Unit) requires primary memory (RAM) to store the instructions and data it is currently processing. Other options like Monitor or User do not directly utilize primary memory in this context.

Multiple choice
  1. Flash

  2. Flange

  3. Fury

  4. FRAM

  5. ROM

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

It is commonly used in MP3 players, computer BIOS code and thumb drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles), so they're not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk), it is an excellent choice for storing the operating code for small personal electronics like PDAs, cellphones, digital cameras and the data in items like MP3 players.

Multiple choice
  1. Video Home System

  2. Very High Speed

  3. Video Horizontal Standard

  4. Voltage House Standard

  5. None of these

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

JVC (Japan Victor Corporation) and Matsushita (Panasonic) developed the VHS format to compete with Sony which developed the Beta format as the first home video cassette recorder. VHS originally stood for Vertical Helical Scan, but now means Video Home System.

Multiple choice
  1. RAID level 0

  2. RAID level 1

  3. RAID level 4

  4. RAID level 2

  5. RAID level 3

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

This level of RAID technology in memory management consist of block-interleaved parity organisation that stores blocks just like in regular disks without stripping them across disks.

Multiple choice
  1. CDs of historical places

  2. CDs of science experiments

  3. CDs of animals

  4. CDs of music

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

Science experiment CDs provide visual demonstrations of complex concepts that are often difficult to perform in a classroom. This makes them highly useful for student learning.

Multiple choice
  1. Hard Disk

  2. Main Memory

  3. Registers

  4. None of these

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

Registers are the fastest type of memory in a computer system, located directly inside the CPU to provide immediate access to data for processing. Hard disks are secondary storage, and main memory (RAM) is slower and external to the processor core.