On Sat, Oct 8, 2011 at 3:31 PM, Chuck Guzis <cclist at sydex.com> wrote:
Apple ?wasn't even part of the USB working group for a long time.
USB was on amny PC motherboards even before connectors for it became
available.
Any motherboard with an Intel Pentium chipset starting with the Triton
II 430HX / 430VX and the 82371SB PIIX3 southbridge had USB 1.0 support
in the chipset, although the BIOS could disable and hide the PIIX3 USB
controller. Those chipsets date to the beginning of 1996. That's a
couple of years before the first iMac with USB support in 1998.
But the original iMac without a built in floppy drive did do a lot to
boost the interest in USB floppy and USB Zip drives at the time.
The first USB device I worked with was the Intel 8x930Ax eval board.
Basically an 80251 core with an on chip USB SIE. I don't know if
anyone makes an 80251 core USB controller anymore.
-Glen