1. Primary and Secondary Storage Explained

2. Primary and Secondary Storage
ICT systems need to store programs and data and this storage can be either in:
Primary storage – in chips inside the computer
Secondary storage (or backup storage) outside the computer

3. Primary Storage Two types of primary storage 1. ROM (Read Only Memory)
2. RAM (Random Access Memory)
With both types of primary storage the programs and data are stored on chips and are available immediately by the central processing unit
They both plug into the mother-board

6. research Time - RAM What is RAM? What is it used for?
Is it volatile memory? What does this mean?
What sizes of RAM are often available in a laptop?

7. Research time - ROM What is ROM? What is it used for?
Is it volatile memory?

8. Secondary Storage
Secondary storage is outside the computer (except for the hard disk)
Hard disk (also includes RAID)
CD R, CD RW,
DVD R, DVD RW
Memory Stick
SD Card
Magnetic tape
Cloud storage (online servers)