In <[EMAIL PROTECTED]>, on
10/17/2005
at 10:02 AM, Doug Fuerst <[EMAIL PROTECTED]> said:
>Actually, there was no single interface board in the 67, which used
>2880/2860/2870 outboard channel units.
Certainly 2860 and 2870, but the 360/67 didn't have block multiplexor
channels, at least not officially. But since the 2067 had control
registers, it definitely sounds doable.
>And those DID have access to
>the SDBI/SDBO (Storage Data Bus In and Storage Data Bus Out)/
Sure, the *channel* had access to the memory bus, but the controller
didn't.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
