Question

Which of the following is a very high-speed semiconductor memory which can speed up the CPU?
1. Cache Memory
2. Primary Memory
3. Main Memory
4. Secondary Memory

Answer 1

Correct Answer - Option 1 : Cache Memory

The correct answer is Cache memory.

• Cache memory is a very high-speed semiconductor memory that can speed up the CPU.
• Cache memory acts as a buffer between the main memory and the CPU.  It holds the most frequently used part of the program and data.
• Some advantages of cache memory are -
  • For temporary use, it is helpful in storing data.                                                                                                             
  • It is faster than the main memory.

• Cache memory holds only those data and instructions that are held by the primary memory or main memory on which the computer is currently working.
• For storing data/information permanently secondary memory also known as external memory or non-volatile is used.