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(i). They provide slow access of information – they process data very slowly compared to primary storage.
Modern secondary storage devices normally operate in milliseconds. It can take between 25 – 50 milliseconds to locate information in a disk drive.
(ii). They have high data storage capacity.
Disks & Tapes can store large amounts of data and instructions; however, the amount of storage is limited by the no. of disk packs or tapes you buy.
(iii). The devices are cheap.
(iv). They are non-volatile. Secondary storage units store data permanently.
(v). Used for mass storage of data & program files not currently being operated on, but which will be transferred to the main storage when required.
Kavungya answered the question on April 2, 2019 at 08:19
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