Richard Hadsell wrote:
Jules Richardson wrote:
Nor me. The way I understand it, there was SASI,
then there was "early
SCSI", and then eventually the Inquiry command crept in and became
part of the Common Command Set. All the bridge boards I've seen are
from the SASI or early SCSI days...
The INQUIRY command is listed in what I assume
is the original SCSI
standard (ANSI X3.131-1986).
Hmm. I just checked a ROM dump from one of the ACB4000's and that's dated
1983, so a few years prior to that ANSI standard.
I think that standard does include the CCS though - it's just that SCSI
existed informally (but in serious use) for quite a few years before ANSI
standardization (hence the large number of vintage devices with no Inquiry)
My laserdisc player harks from 1986, incidentally, and even its SCSI data
interface has no Inquiry support - it was just too early, I suppose...
cheers
Jules