Introduction

This module will cover:

• The need for primary storage
• The difference between RAM and ROM
• The purpose of ROM in a computer system
• The purpose of RAM in a computer system
• Virtual memory
• Cache

For this topic, the specification states that you should know the following:

• Why computers have primary storage (memory)
  • How this usually consists of RAM and ROM
• Key characteristics of RAM and ROM
• Why virtual memory may be needed in a system
• How virtual memory works
  • Transfer of data between RAM and secondary storage when RAM is full

Written content coming soon!

About the Author

Hi! I'm Oliver, a Computer Science student in the UK. I created CourseNotes as a way to share my learning and knowledge with the world, and help other students to do their best in their exams.

I am currently studying Computer Science at GCSE level with the OCR exam board. All notes on this site will be exam board specific, but a lot of the concepts are similar across other exam boards.

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