Secondary storage is used to hold data or information permanently. It is also ald auxiliary storage, external storage or backing storage. It lies outside the CPU The computer usually uses its input/output channels to access secondary storage and mass the desired data using intermediate area in primary storage Secondary me does not lose the data when the device is powered off and it is non-volatile. Seme examples of secondary storage devices are Hard Disk drive, CD, DVD, Blue Day Dick, Flash memory and Memory cards.
Secondary storage devices
Secondary Storage Devices are used for during the data permanently.
These devices have the blowing characteristics.
- They are non-volatile at the data is not lost when power goes off.
- The capacity of these devices is very high. It goes to terabytes.
- They are cost effective as compared to the main memory They are able as data can be erased and stored any time the user requires.
- Depending on their characteristics, these are sequential and random or direct access.
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