UNIT LEARNING INTENTIONS 

What you will learn:
 
1) The need for primary storage

2) The difference between RAM and ROM

3) The purpose of ROM in a computer system

4) The purpose of RAM in a computer system

5) The role of Virtual memory

You need to know:
  1. Why computers have primary storage
  2. How this usually consists of RAM and ROM
  3. Key characteristics of RAM and ROM
  4. Why virtual memory may be needed in a system
  5. How virtual memory works
  6. Transfer of data between RAM and HDD when RAM is filled

What you will learn:

1) The need for secondary storage

2) Common types of storage:
  • Optical
  • Magnetic
  • Solid state

3) Suitable storage devices and storage media for a given application

4) The advantages and disadvantages of different storage devices
   and storage media relating to these characteristics:
  • Capacity
  • Speed
  • Portability
  • Durability
  • Reliability

You need to know:
  1. Why computers have secondary storage
  2. Recognise a range of secondary storage devices/media
  3. Differences between each type of storage device/medium
  4. Compare advantages/disadvantages for each storage device
  5. Be able to apply their knowledge in context within scenarios