Multiple choice

Which computer memory is essentially empty?

  1. RAM

  2. ROM

  3. EPROM

  4. PROM

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

ROM (Read-Only Memory) is 'essentially empty' in the sense that it contains no user-writable or changeable content - it's pre-programmed during manufacturing and cannot be modified by normal use. RAM can be written to, EPROM can be erased and reprogrammed, PROM can be programmed once. Only ROM is permanently fixed.