Automatic Sensing of Diskette Drives for Personal Computers
Original Publication Date: 1987-Aug-01
Included in the Prior Art Database: 2005-Feb-01
A technique is described whereby an automatic sensing circuit determines if one or more diskette drives are installed in a typical personal computer. The circuit eliminates the prior-art need for setting dip switches or the initiation of disk instructions in a SETUP program. Since a personal computer may have more than one diskette drive installed, in prior art the sensing of the number of diskette drives required removal of covers to set a dip switch and/or to follow a procedure in SETUP programming operations. The concept described herein provides a method of polling all possible drive addresses, so as to automatically initiate a self-configuration of the number of drives installed in a particular personal computer.