> > The iBM PC waas released in 1982 with dissk pased PC's shortly after > > using IDE interface. SCSI was considerably later. SCSI has a whole history prior to the PC world adopting it (and originally was known as SASI) > the AT Attachment interface didn't arrive until the PC/AT. Somewhat later than that. PC/AT was ST-412. The first 'AT attachment' type interfaces were some of the 'hardcard' devices and then a few PC systems had various pre-ATA standard interfaces based on routing ISA timing (aka PIO 0) I/O cycles direct to a controller on the disc and replacing the PC side controller with a simple address decoder and glue logic to route the right I/O cycles. > The PC didn't (originally) have disk at all, the PC/XT was the first > with disk, and it used the ST-506 interface. Alan
