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Secondary Storage and Primary cos am ard (Magnetic Storage (High Capacity,…
Secondary Storage and Primary cos am ard
Magnetic Storage
High Capacity
Purpose
The purpose of this is to Store things for quite cheap
Can store lots of data
Relatively cheap
Non Portable
Slow write speed to tape
Can be damaged by magnets and wiped easily
Optical Storage
Cd drives are common in computers
Purpose
The purpose is to carry around songs or dvd's well.
Easily portable
Blu ray disks can hold lots of data and are layered
Easily damaged/scratched
Quite expensive for re-writable disks
Solid state
Resistant to shock
Purpose
The purpose of this is to keep things safe as there are no moving parts
Portable
Fast read and write times compared to optical and magnetic
Low storage compared to magnetic and optical
Expensive for high capacity storage
RAM
Ram stores open applications like chrome.
Volatile
Higher capacity than Rom But never compare Ram to Hard Drive
It does not save the open browsers
ROM
Rom is much smaller than RAM
It holds the bootstrap sequence
It is Read Only Memory