Monday, August 12, 2019

Magnetic Tapes / Introduction to computers

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 is a tape drive (tape unit,  streamer g.

Pen Drive :
It is at type of University Serial Cable (USB)  flash drive.  It is a kind of memory card that can be plugged into a computer's USB port.  It is termed "Pen drive " with reference to its size.  It is small and compact thus making it fit in to the palm of our hand.  It is often flat and rectangular like a highlighter pen.  A pen drive is used to store data and has a storage capacity of 64MB to 32GB.  It is removable and Rewritable.  It is mostly used as a backup for CD-ROMs or floppy disks.

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