CHAPTER 3 — Computer Memory

Classic programmed-learning exercises, refreshed for modern Java and presented in the current MrStyner.com portfolio style.

Modern Java noteThis archive has been refreshed for Java 25 LTS. Core language concepts remain useful, while outdated setup instructions and browser-era Java are labeled or replaced. Java 26 is the current feature release; Java 25 is used here as the stable teaching baseline.
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revised: 01/18/99, 01/16/00, 01/09/06, 08/22/08

CHAPTER 3 — Computer Memory

Recall from chapter one that the major hardware components of a computer system are:

  • Processor
  • Main memory
  • Secondary memory devices
  • Input/output devices

This chapter looks at main and secondary memory.

Chapter Topics:

  • Bits and Bytes
  • Kilobytes, megabytes, gigabytes
  • Main memory and addresses
  • Secondary memory
  • Files

QUESTION 1:

(Educated Guess: ) If you bought a new computer, about how much main memory would you expect it to have: 256 bytes, 256 kilobytes, or 256 megabytes?

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