2021 · Q88
Which one of the following memories is extremely fast and acts as a high-speed buffer between the CPU and the main memory?
Knowledge of Computer ApplicationsComputer fundamentals
- ARAM
- BROM
- CFlash Memory
- DCache Memory
Explanation
Cache memory (L1/L2/L3, built from fast SRAM) sits between the CPU and the main memory and holds frequently used data and instructions, acting as a high-speed buffer roughly ten times faster than DRAM. RAM is the main memory itself, while ROM and flash memory are slower non-volatile storage. Hence (D) cache memory is correct.