Hard Disk Data Encoding and Decoding Digital information is a stream of ones and zeros. Hard disks store information in the form of magnetic pulses. In order for the PC's data to be stored on the hard disk, therefore, it must be converted to magnetic information. When it is read from the disk, it must be converted back to digital information. This work is done by the integrated controller built into the hard drive, in combination with sense and amplification circuits that are used to interpret the weak signals read from the platters themselves.
Information is stored on the hard disk by encoding information into a series of magnetic fields .
This section discusses the technical issues involved in encoding and decoding hard disk data. This page has been served 29664 times. Copyright 1997-2001 Charles M. Kozierok . All Rights Reserved. Not responsible for any loss resulting from the use of this site .