Question

Which of the following is an extremely fast, small memory between CPU and main memory?
1. Main RAM and ROM
2. Cache memory
3. Secondary memory
4. None of the above

Answer 1

Correct Answer - Option 2 : Cache memory

The correct answer is Cache memory.

• ​Cache memory:-
  • It is a high-speed storage area for temporary storage.
  • It is the smaller and fastest memory component in the computer.
  • It is used during the reading and writing processes from the disk.
  • It acts as a buffer between RAM and the CPU.

• ROM: Read-Only Memory
  • It refers to computer memory chips containing permanent or semi-permanent data.
  • It is non-volatile.
  • The data remains intact even when the power is switched off.
  • It contains the programming needed to start a PC, which is essential for boot-up.
  • It performs major input/output tasks and holds programs or software instructions.
  • It is the permanent memory built into your computer.
• CPU: Central Processing Unit
  • It is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control, and input/output operations specified by the instructions.
  • It processes all instructions received by software running on the PC and by other hardware components and acts as a powerful calculator.
• RAM: Random Access Memory
  • It is a hardware device that allows information to be stored and retrieved on a computer.
  • It is volatile.
  • The data is erased even when the power is switched off.
  • The programs and data that the CPU requires during the execution of a program are stored in this memory.