Please enable JavaScript.
Coggle requires JavaScript to display documents.
Secondary Storage - Coggle Diagram
Secondary Storage
Optical devices
-
Types
-
Rewritable (RW): Work as R but data can be written multiple times,
-
Examples: CDs, DVDs or Blue-ray
Magnetic devices
Use magnetic fields to magnetise tiny sections of the metal spinning disk. (each section is called a bit.
-
-
-
-
Solid-Sate Drives
How does it work?
-
It has cells that are called "pages", then this pages are joint to create "blocks", on these ones, the infomration is collected and as they are separated, they do not overwrite
Also called SSD
They are the most recent variation of long term storage for computers and devices in general.However, they are still more expensive than traditional storage devices
-
It is functional trough Hard Drives, SD Cards and USB stick
some examples are:
SATA SSD. SATA SSDs are the first generation of SSDs. They can reach a read speed of up to 570MB per second.
-
-
Secondary storage is non-volatile , long-term storage. It is used to keep programs and data indefinitely. Without secondary storage all programs and data would be lost the moment the computer is switched off.
-