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How a floppy disk is read ?
A floppy disk is inserted into a slot in the computer. Pushing down the lever above the slot moves a cone down through the disk's central hole to seat the disk on a flywheel. A small motor drives the flywheel and spins the disk. An electromagnetic read/write head reaches the different parts of the disk surface through the head-access slot in the disk's protective jacket.
-- Adapted from 'Computers and Information Processing', 2nd Edition, by William M. Fuori and Lawrence J. Aufiero; 1989 Prentice-Hall, Inc.
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