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Storage - Coggle Diagram
Storage
Secondary
Magnetic
Has an arm that reads to see if parts of the disk is magnetised or not
not very durable as it has movable parts
Solid state
Stores data using electrons
short life cylce
Faster read/write cycle
Optical
Pits and lands are carved into the CD drive to store 1 and 0
Cheap, not a lot of storage size
Cloud
Data is stored on serveres that can be access anywhere with wifi
cheaper as you don't have to buy the storage device and very portable
VM
When part of secondary storage is used as primary storage when not enough RAM is present
Slower speed then normal primary as it has a slower read/write speed and it is further away then primary
Set up in OS
but has to go back to RAM from VM
Can cause disk thrashing and wear out a HDD
Can use up chemicals in an SSD to reduce the lifespan
Primary
ROM
Stores the BIOS so the computer can start up
Cache
stores the frequently used instructions for the CPU
faster to access then RAM but less storage size
RAM
Stores instructions and data that the CPU needs for the FDE cycle
register
small really fast piece of storage that is on the CPU