Difference between Primary and Secondary Memory
Primary Memory
|
Secondary Memory
|
| These are semiconductor memories. | These are magnetic and optical memories. |
| They are characterized as volatile random access memories (RAM) or on-volatile memories (ROM). | They are non-volatile. |
| They contain program and data that is currently being used by micro processor. | These are used to for bulk storage. |
| These memories are fast enough to interact with the microprocessor. | Slower than primary memories. |
| Also known as Main Memory | Also known as Backup Memory or Auxiliary Memory. E.g. Tapes, Floppies, Hard Discs, CD ROMs, DVDs |
