GK Question

technology medium mcq

Which memory type is fastest in a computer system?

  1. RAM
  2. Cache
  3. Hard Disk
  4. Register

Answer: Register

Registers are the fastest memory type, located inside the CPU, used for immediate data processing. Cache is next fastest (L1/L2/L3), followed by RAM, then storage devices (SSD/HDD). Speed hierarchy: Registers > Cache > RAM > SSD > HDD.

Topic Computer Fundamentals
Exam Relevance SSC JE, Banking IT, Railway