Secondary Storage Thin, rigid covered with a substance that allows data to be held in the form of The more there are, the higher the Store data in Data read by Formatting creates a that maps to ride on .000001” cushion of air, and can crash! Important data should always be backed up! Cheap, but many moving parts

Secondary Storage Types: External – a freestanding Removable – inserted into a cartridge drive on the PC Circuitry which allows the to communicate with the EIDE – Enhanced Integrated Drive Electronics Marketed as SATA, Fast ATA, Ultra ATA, ATA-2, ATA/100 SCSI – Faster than EIDE controllers

Storage -style disk with extremely high capacity Data is written and read using Data stored in the form of and – Read Only Memory - recording only once – erasable, can record and erase data repeatedly -style disk with extremely high capacity Can store more and , and store in Stores 4.7 or more GB is used for recording only once are reusable can read , but not always vice versa – next generation - 25 gigabytes

Memory memory with no But the electronics can Available as Insert these into a of a camera, handheld PC, smartphone A form that plugs into a A finger-sized module of Plugs into the of most PCs and Macintoshes

The System Unit: The Basics