computing
int2
backing storage
- Main storage is located inside the computer system. it can either be RAM or ROM.
- Backing storage is outside the main processor, e.g Hard Drives, CD/DVD drives, USB flash memory (pen drives)
ROM
- Rom is used to store a small part of the operating system called the bootstrap loader.
- Data is stored permanently in ROM
- Data is not lost when power goes off
- Data in ROM cannot be changed
RAM
- The term RAM is synonymous with main memory, the memory available to programmes
- A processor can write to and read from RAM at high speed
- Data held in RAM can be changed
- All data in RAM is lost when the power is switched off