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Lesson 12 of 14 · about 10 min

The speed ladder

Fast memory is small and expensive; big storage is slow and cheap. Computers stack them in a hierarchy and keep the data you'll need next close to the CPU, in caches.

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This lesson is part of the DoingCamp Pass. Members get every lesson in every course, with all the interactive visuals, coding exercises and challenges.

In this lesson you'll learn:

  • Memory hierarchy
  • Cache
  • Latency

Free to try in F01 What Is a Computer?:

The first 3 lessons of every course are free, no account needed.