Input/Output/Storage Flashcards
Optical disk
storage device
A device for reading and writing to optical disks using lasers
Optical
medium
Storage media that hold content in digital form using microscopic pits/patterns that are written and read by a laser e.g. CDs
Magnetic
storage
Is backing store in which magnetised, flat circular rotating plates or tapes, are used for storing digital data.
Magnetic
medium
The magnetically coated material e.g. disks or tapes
Solid state
Non-volatile storage device consisting of an array of semiconductors that stores persistent data on solid-state flash memory.
Solid state
medium
Non-volatile an array of semiconductors.
Fragmentation
Related data is split and stored on different parts of the disk
Defragmentation
Process of physically moving together elements from the same file in order to improve performance in terms of access read and write speeds on a magnetic
HDD.