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

What is the highest Data Measurement Unit?

  1. Terabyte

  2. Gigabyte

  3. Exabyte

  4. Yottabyte

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

1 YB = 10248 bytes and is bigger than terabyte. But, it is the highest term in unit of Information measurement. So, this is the correct answer.

Multiple choice

Where is the virtual memory located?

  1. Floppy disk

  2. CPU

  3. Flash car

  4. Hard drive

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

It is a memory storage device used to permanently store and also retrieve information. 

Multiple choice

Which of the following memories must be refreshed many times per second?

  1. Static RAM

  2. Dynamic RAM

  3. EPROM

  4. ROM

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

It is a type of physical memory that is used in most personal computers. The term dynamic indicates that the memory must be constantly refreshed or it will lose its contents. RAM (random-access memory) is sometimes referred to as DRAM.

Multiple choice

Where is the basic input/output system stored?

  1. RAM

  2. ROM

  3. CPU

  4. Hard drive

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

It is a type of storage medium that permanently stores data on personal computers (PCs) and other electronic devices. Data stored in ROM can only be read.

Multiple choice

Where is the CPU and memory located?

  1. Expansion board

  2. Motherboard

  3. Storage device

  4. Output device

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

It is the main part of a computer. It holds together many components of a computer, including the central processing unit, memory and connectors for input and output devices.

Multiple choice

Which of the following address decoding techniques in microprocessor is the one in which the memory chip is selected for the specified logic level on the address lines and no other logic levels can select the chip?

  1. Linear decoding

  2. block decoding

  3. Absolute decoding

  4. CMOS

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

This address decoding technique in microprocessor is the one in which the memory chip is selected for the specified logic level on the address lines and no other logic levels can select the chip.