What Is A Floppy Disk?

Back in the old days, data was first stored on floppy disks for PCs. They were 8" and the media was very thin. If you hald it by the edge and wiggled it, it flopped.

Those were replaced with 3.5 " disks - not floppy as they were enclosed in plastic.

Today, few machines have floppy drives though they can come in handy. Most now come with cd or dvd rom drives.

A floppy disk looks like a 45 rpm record encased in a square jacket. They have been named so because they are flexible. They can hold data from new tenths of a megabyte. This depends upon factors such their size and nature of magnetic material. They are available in 8 inches, .25 inches and 3.5 inches. They are also classified to be single or double –sided and may have normal, double or high density. In the high definition category that diskettes with capacity 2.88 mega byte are also available.

They are mostly used for input on microcomputers. As regards its construction a floppy disk consists of a light flexible disk enclosed in a cash board or plastic jacket. A disk drive is used to read and write the data. A part of the magnetic surface is exposed to allow contact with the read write heads. The disk controller looks for the index hole that marks the location of the first track. When index hole is detected the controller begins reading data from the specified track in smaller disks. The area is protected by a sprung metal cover. The floppy disks were originally developed in 1971 as a replacement for cards and they have highly successful in this role.

A disk which when you pick it up you feel it go all loose and floppy and then the end starts to bend and all of it then bends and by the it it gets so floppy you have to drop it !

It is the disc that you can use to put/retreive data on a computer. They have now been replaced by DVDs or Cds.