Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!daugher
From: daugher@cs.tamu.edu (Dr. Walter C. Daugherity)
Newsgroups: comp.sys.next
Subject: Re: Perceived Performance/DSP
Keywords: PDP-11
Message-ID: <6611@helios.TAMU.EDU>
Date: 16 Jul 90 19:39:22 GMT
References: <1990Jul15.202600.17995@portia.Stanford.EDU>
Sender: usenet@helios.TAMU.EDU
Organization: Texas A&M University
Lines: 14

In article <1990Jul15.202600.17995@portia.Stanford.EDU> declan@portia.Stanford.EDU (Declan McCullagh) writes:
>
>At first, Unix systems were assumed to have very little physical memory and
>fast hard drives, which led to this I/O intensive approach to things (early
>PDP-11s supported a maximum of only 248K of main memory).  

Don't you mean 28K 16-bit words (with the last 4KW for memory-mapped I/O)?

-------------------------------------------------------------------------------
Walter C. Daugherity			Internet, NeXTmail: daugher@cs.tamu.edu
Knowledge Systems Research Center	uucp: uunet!cs.tamu.edu!daugher
Texas A & M University			BITNET: DAUGHER@TAMVENUS
College Station, TX 77843-3112		CSNET: daugher%cs.tamu.edu@RELAY.CS.NET
	---Not an official document of Texas A&M---