This presentation helps to understand easily storage devices with interactive look with a easy and efficient way. It may reduce the hurdles which are usually comes while we are trying to listen or understand the overall structure of Storage Devices. Hope it may help you in your Educational and professional life. Thanks.

1. Presentation by:
Sandeep

2. Storage Devices:
Storage devices
are those devices which are
used to store the data in
computer efficiently are
called as storage devices.

3. Organisation of Storage
devices:
Memory
Primary
memory(main
memory)
Volatile memory
Ram
Sram
Dram
Non-volatile
memory
Rom
Prom
Eprom
Eeprom
Secondary
memory(acxillary
memory)
Sequential
storage devices
Magnetic tape
Direct storage
devices
Hard disk
Floppy disk
Cd/Dvd

4. Primary Memory:Primary memory is also called
as main memory .Data stores with the help of
electronic circuit. We can devide the primary
memory in two categories :1.volatile
memory(RAM)
2.Non-volatile memory(ROM)

5. RAM:

6. ROM:
 ROM is a semi conductor memory.
 The data of ROM can not be changed .
 ROM is mainly used as BIOS in pc.
 ROM has two types:1.PROM
2.EPROM

7. Secondary Memory:
Secondary memory is also
called as auxillary memory. We can devide it
into two categories:1.Sequential storage
devices
2.Direct access storage devices

8. Magnetic Tap:
 It is a sequential access storage device.
 The tape length is normally 2400 feet and width is 1/2 inch.
 It is not used for online data applications.
 The recording density is represented as BPI(bit per inch).

9. Hard Disk:
 Hard disk is a direct access device.
 The capacity of hard disk is more larger than
floppy disk.

10. Floppy Disk:
 Types of floppy disk:
Diameter Storage
capacity
8 inch 100 to 500 KB
5.25 inch 1.2 MB
3.5 inch 1.44 MB

11. Sandeep Kumawat