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J277 1.2.2
Secondary Storage
| Term | Definition |
|---|---|
| Flash | Memory type used by SSDs, USB drives and SD cards (derived from solid–state storage) |
| Secondary Storage | Non–volatile method for storing data for long term use e.g. files and applications |
| Optical | Storage technology which involves the use of lasers to read and write data to a disc, e.g. CD, DVD |
| Magnetic | Storage technology which uses magnetic disks to stores the data (HDD) |
| Solid State | Storage technology that does not use any moving parts – stores the data with electrical signals. (SSD) |
| Capacity | Characteristic for how much data a storage device can hold. |
| Speed | Characteristic for the speed of data transfer on a storage device |
| Portability | Characteristic for whether you can move around with a storage device |
| Durability | Characteristic for how tough and robust a storage device is |
| Reliability | Characteristic for how dependable a storage device is |
| Cost | Characteristic for how much it costs for a storage device per Megabyte |