Multiple choice general knowledge history

Fastest Component of Computer

  1. Cache

  2. RAM

  3. HardDisk

  4. Register
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Registers are the fastest computer components because they are built directly into the CPU and operate at the processor's clock speed. They are used for immediate data storage and manipulation during instruction execution. Cache memory (L1/L2/L3) is faster than RAM but slower than registers. RAM is volatile storage slower than cache. Hard disks are the slowest as they involve mechanical movement. The speed hierarchy is: Registers > Cache > RAM > Hard Disk.

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