Wednesday, September 30, 2009

Floppy disk and the USB



History of the floppy disk drive

One of the most popular in 1967 at the IBM was Alan Shugart because he invented the
floppy disk drive (FDD). The first floppy drives used in 8-inche disk (later called a diskette as it got smaller), which evolved into the 5.25 inch disk that was used on the first IBM Personal computer in August 1981. However it does not last long because the capacitu of 5.25 inch disk has only 360 kilobytes so the IBM invented a new disk which has a capacity 1.44 megabytes and quite smaller which is about 3.5 inch diskette. The 5.25 inch disks were dubbed “floppy” because the diskette packaging was a very flexible plastic envelope, unlike the rigid case used to hold today’s 3.5 inch diskette.

At present most of the people now enjoyed a new trend which is now called USB. USB has different choice. Customers can choose what capacity they would like to purchased. Based on my own know there is about 16GB USB which was now invented and most of my friends have it already. With this we have to what out for the most high technology from the IBM.

1 comment:

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