Path: utzoo!mnetor!uunet!husc6!ut-sally!utah-cs!cetron
From: cetron@utah-cs.UUCP (Edward J Cetron)
Newsgroups: comp.sys.dec
Subject: Re: pdp questions...
Message-ID: <5168X@utah-cs.UUCP>
Date: 21 Jan 88 00:00:00 GMT
References: <16886@gatech.edu>
Reply-To: cetron@cs.utah.edu.UUCP (Edward J Cetron)
Organization: Center for Engineering Design, Univ of Utah
Lines: 23

In article <16886@gatech.edu> ken@gatech.edu (Ken Seefried iii) writes:
>the 11/23, 11/23+ and 11/24...
	same chip set, (t-11 i seem to recall) but 23+ had some outboard
	slu's etc unlike the 23.  the 23/23+ where q-bus, the 11/24 used
	a similar (but NOT identical) chip set and was unibus

>the 11/44 and 11/45...
	the 11/45 was a cache-less 11/70, old chip set. 11/44 was much newer
	and used the same type of dual bus (processor-memory vs unibus) as the
	11/70 but only had 1 set of registers unlike the 11/70...
	(it also took LOTS less power)

>the 11/70, 11/73 and 11/84/83...
	the 11/73 used the j-11 chipset which was a 1 chip 11/70.... it runs
	at approx 14Mhz on the q-bus with standard memory on the q-bus, the
	83 and 84 use the 18Mhz j-11 with PMI memory on the c-d interconnect
	and in most (but not all) circumstances are the fastest 11's around

('cept those fascinating rumors of 40Mhz j-11's running in liquid nitrogen
......)

-ed cetron
cetron@cs.utah.edu