The Small Computer System Interface (SCSI) standard (IBM developerWorks)
Alan Shugart, founder of Shugart Associates and Seagate, gets most of the credit for being the visionary who realized the world needed a standard like this one. The initial protocol was called the "Shugart Associates Systems Interface," or SASI. It had a fairly limited set of protocol commands, and performance peaked out at 1.5 MBps (which sounds pretty weak, but for 1979 this was incredible)."
