Presentation on Magnetic Tapes

Information about Magnetic Tapes

1. PRESENTATION ON MAGNETIC TAPES

2. ADITYA GOSWAMI BBA M1 R.NO.-3

3. What Is Secondary Storage Device? A  secondary storage device  refers to any volatile  storage device  that is internal or external to the computer. It can be any  storage device  beyond the primary  storage that enables permanent data  storage . A  secondary storage device  is also known as an auxiliary  storage device  or external  storage .

4. Types Of Storage Random access storage Serial access storage – example: Magnetic tapes Direct access storage – example :Magnetic disks

5. Magnetic tapes Magnetic tape  is a medium for  magnetic recording , made of a thin, magnetizable coating on a long, narrow strip of  plastic film . It was developed in  Germany , based on  magnetic wire recording . Devices that record and play back audio and video using magnetic tape are  tape recorders  and  video tape recorders . A device that stores computer data on magnetic tape is a tape drive  (tape unit, streamer). The standing record for how  much data magnetic tape could  store is 29.5GB per square inch. To compare, a standard dual-layer Blu -ray disc  can hold  25GB per layer

6. Long tape coated with magnetic material Consists of 9 tracks TRACKS

7. Read-write head A byte of data is stored laterally Data is stored and accessed as records TRACKS Read write head record

8. Floppy disk Two component address: Track number and sector number TRACK SECTOR

9. Floppy disk Read-write head: