05142626 is referenced by 16 patents and cites 4 patents.

This invention relates to personal computers, and particularly to a personal computer having provision for identifying the type of direct access storage device associated with the computer and further identifying the storage capability of removable media used in the device. The apparatus disclosed uses certain ones of a plurality of signal communicating pathways extending between a storage device and a controller to distinguish between the absence of signals as indicating the presence of an older type drive and the presence of signals as indicating the presence of a newer type drive, the pattern of said signals further indicating the type of media inserted into the device with which the controller is communicating.

Title
Personal computer with removable media identification
Application Number
7/556926
Publication Number
5142626
Application Date
July 20, 1990
Publication Date
August 25, 1992
Inventor
James Tai
Deerfield Beach
FL, US
Arthur R Wheeler
Boca Raton
FL, US
Alan F Arnold
Boca Raton
FL, US
Agent
Daniel E McConnell
Assignee
International Business Machines
NY, US
IPC
G11B 15/12
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