Computer Science - 1.2 - (quick)

Memory and Storage

Capacity

Describes how much data can be stored on a device

Durability

A quality of a storage device that will continue to work if dropped

Flash

Memory types used by SSDs USB drives and SD cards

Magnetic

Type of storage device which included traditional hard drives

Optical

Type of storage device which involves the use of lasers to read and write data

Portability

A measure of how readily a storage device can be moved from one computer to another

RAM

main memory of a computer that stores data, application and the operating system while in use

Reliability

A measure of how much you can depend on a storage device to keep functioning

ROM

Type of non-volatile memory that holds crucial information such as the boot program

Secondary Storage

Non-volatile memory which is not directly accessed by the CPU

Solid State

Type of storage device that does not use any moving parts

Speed

A measure of how quickly data can be read from or written to a device

Storage Media

An umbrella term to describe hard drives CDs, flash drives

Virtual Memory

Type of memory that combines the computer's RAM with temporary space on the hard disk