Xref: utzoo unix-pc.general:1572 comp.sys.att:4612
Path: utzoo!utgpu!water!watmath!clyde!att!occrsh!rjd
From: rjd@occrsh.ATT.COM (Randy_Davis)
Newsgroups: unix-pc.general,comp.sys.att
Subject: Re: Rumors...
Summary: 80186 also used on 3B2 option cards
Keywords: 7300 3b1 UNIXpc
Message-ID: <412@occrsh.ATT.COM>
Date: 26 Oct 88 16:34:11 GMT
References: <373@uncle.UUCP> <410@occrsh.ATT.COM> <8983@ihlpb.ATT.COM>
Reply-To: rjd@occrsh.UUCP (Randy_Davis)
Organization: AT&T Network & Data Systems, OKC
Lines: 22

In article <8983@ihlpb.ATT.COM> res@ihlpb.ATT.COM (Rich Strebendt) writes:
:In article <410@occrsh.ATT.COM>, rjd@occrsh.ATT.COM (Randy_Davis) writes:
:|   The only AT&T "minicomputers" I know of are the 3B family.  As John says,
:| the PCs are considered "microcomputers" (do the PCs use 68000 chips?).  The
:| 3B family includes the 3B2, 3B5, 3B15, 3B4000, 3B20 Simplex, and 3B20 Duplex.
:| I know for sure that all the 3B2, 3B15, and 3B4000 computers use the AT&T -
:| designed and manufactured full 32-bit microprocessor.
:
:That is true for the Central Control (CC) for each of those machines.
:The 3B5/3B15/3B4000 line of computers also uses microprocessor-based
:intelligent peripheral controllers.  The Intelligent Disk File
:Controller (IDFC) board does use a 68000 as its engine.  Other
:intelligent boards (eg: ITC, ATC, IOA), use the WE32000 series of
:microprocessors (32000, 32100, 32200).

  True, I was only meaning to address the main CPU.  Of course you are right.
In fact, most of the 3B2 intelligent option cards use 80186 16-bit
microprocessors.  There is one on each ports or eports board, the SCSI host
adapter, etc...

Randy Davis					UUCP: ...(att!)ocrjd!randy
						      ...(att!)occrsh!rjd