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SubjectsComputerComputer FundamentalsChapter 2 — Memory & Storage2.4 Storage Units & Measurement

Topic 2.4 · Computer · Memory & Storage

Storage Units & Measurement

Storage Units & Measurement is studied as part of "Memory & Storage" (Computer Fundamentals) in Computer. Primary and secondary memory, cache, RAM-ROM and storage units are basic and frequently asked.

In the examination context, storage units & measurement carries conceptual questions that test both factual recall and analytical understanding. Revise this topic in sequence with the rest of the chapter so that chronological and thematic links are clear.

Important Facts

1 KB
1024 bytes
RAM
Volatile — temporary memory
ROM
Non-volatile — permanent
Cache
Fast memory between CPU and RAM

Key Points

  • RAM — Volatile — temporary memory
  • ROM — Non-volatile — permanent
  • Cache — Fast memory between CPU and RAM
  • 1 KB — 1024 bytes

Important Names

—Jay Forrester
Exam-Oriented Notes
  • »RAM loses data on power-off; ROM retains it. Storage units: B → KB → MB → GB → TB (1024 each).

Related topics

2.1 Primary Memory — RAM & ROM2.2 Secondary Storage Devices2.3 Cache & Virtual Memory
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