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1.2 Memory


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Flash
An electronic non-volatile storage that can be erased and reprogrammed
Hard Drive Disk
A magnetic motorised storage device
Disk Thrashing
The process of moving data from RAM to Virtual Memory on the HDD
Portable
Can be moved or carried because it is light and small
Internal
A storage device stored inside a PC connected tot he motherboard
External
A storage device that can be connected to a PC, usually to a USB socket
Secondary Storage
Usually the HDD. This is non volotile storage that is slower to access than RAM
Primary Storage
Storage on board the PC, such as RAM
RAM
Random Access Memory
ROM
Read Only Memory
Virtual Memory
A space allocated on the hard drive as an overspill for when RAM is full
Volatile Memory
Memory that loses data stored when powered off
Cache
Ultra high speed storage on CPU