Lecture 3

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Arun Mishra

Learning Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Secondary Storage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Magnetic Tape ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of Magnetic Tapes ,[object Object]

Types of Magnetic Disks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of Optical Disks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Memory Storage Devices ,[object Object],[object Object],[object Object],[object Object]

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1. Information Technology for Managers Session 3 By Prof. Arun Mishra

3. Limitations of Primary Storage

5. Classification of Secondary Storage

6. Sequential-access Devices

7. Direct/Random-access Devices

9. Storage Organization

10. Storage Organization

11.

12.

13. Magnetic Disks

14. Storage Organization

15.

16.

17. Optical Disks

18. Storage Organization

19. Access Mechanism

20. Access Mechanism

21.

22.

23. Flash Drive (Pen Drive)

24. Flash Drive (Pen Drive)

25. Memory Card (SD/MMC)

26. RAM Disk

27.

28.

Notas do Editor

Secondary storage is – stores programs and data nonvolatile as opposed to volatile (temporary) storage (RAM) which is lost when power shut off to computer. Media – actual physical material that hold data Capacity – amount of data the storage medium can hold Access time – amount of time to retrieve and write data
Sequential access because they have to be fast forwarded or rewound before a specific location can be reached. A common sequential access method of Two forms of tape storage Magnetic tape cartridges, also called magnetic tape streamers Magnetic tape reels Tapes are run on magnetic tape drives or magnetic tape units

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