USB memory sticks
contain flash memory and
are used in USB ports;
they're used to store data
and files for transfer to
other computers.
Solid State Drive (SSD)
SSDs use flash memory to store software and data files. There are no moving parts in
SSDs, making them faster and more reliable than HDDs. They can be more expensive
than magnetic hard disks for the same amount of storage, meaning that they
normally have a smaller storage capacity than HDDs.
The files can be read, edited, re-written or
deleted. The can be used for storage of the
operating system, files and data not in use
at the time or when the computer is shut off
Hard Disc Drive (HDD)
HDDs use magnetic disks for storing
software and data files. The disks are
circular and spin at high speeds while drive
heads read and write the data; this makes
the hard disks susceptible to dirt and
damage if moved suddenly. Hard disks can
store huge amounts of data
The files can be read, edited, re-written or deleted. Hard
disks are used for storage of the operating system, files and
data when the computer is not in use at the time or turned
off.
Optical Device
An optical drive uses optical media such as CDs and
DVDs to store software and data in. Blu-ray disks are
large capacity optical disks and can store large
amounts of data.
Data stored on CD-ROMS and DVD-ROMS can be read
but cannot be altered. The files can be read, edited,
re-written or deleted, ONLY if CD-R/RWS or DVD-R/RWS
ARE USED.