Chapter 04 - Hardware: Storage Devices

Chapter 04 - Hardware: Storage Devices

1. internal memory and the way its used

   • ROM - To premanently store the bootup sequence/OS core and BIOS
   • RAM - To store data that is being used or in use
   • Cache Memory - To store the most frequently accessed data

2. RAM - Used as temporary stroage and is voltile. Holds current application program/ data being processed before its saved. Holds non-core operating systems

3. Hard Disk - Used as semi-permenant storage, holds application software and OS. Holds the saved database

4. CD-RW - portable and can be moved to a safe place, data can be copied onto it as it is writable so backup data can be copied onto it, can be re-used, enough capacity for small/ medium databases

5. Internal Hard disk - Stored inside the computer and cannot be easily removed