Xref: utzoo comp.sys.tandy:2659 misc.forsale:21024 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!usc!wuarchive!julius.cs.uiuc.edu!ux1.cso.uiuc.edu!news.cs.indiana.edu!iuvax!mikes From: mikes@iuvax.cs.indiana.edu (Michael Squires) Newsgroups: comp.sys.tandy,misc.forsale Subject: Re: For sale: Model 16 computer Summary: 2080 for SA1000 swap Message-ID: <71566@iuvax.cs.indiana.edu> Date: 13 Nov 90 20:33:31 GMT References: <1990Nov11.235720.12839@stb.info.com> <177@rwing.UUCP> Organization: Indiana University, Bloomington Lines: 21 In article yetsko@interlan.interlan.com writes: >Quantum Q2080 drives will 'drop in' if you have the old 8Meg HD units. Just A line has to be run to line 5 (I think - it's been a while) of the data cable from the write protect switch (yellow contact) to pull it high to enable writing of the HD. I used these in the old "sir-alan", and they were very reliable if very noisy. I've seen them in Computer Hot Line for $250 each recently. They were also quite fast, benchmarked at about 80% of the speed of the Tandy CDC 71MB drive. The 8" controller would handle more than 1024 cylinders, and for some versions of XENIX a company in Pittsburgh provided a revised formatter that formatted the entire drive (the 2080 formats to 61MB as it has 7 heads, not 8 with 1024 cylinders). This required modifying the device drivers with adb; I know it worked as I used to log into a system with 71MB on a single Q2080, but I never tried it. -- Mike Squires (mikes@iuvax.cs.indiana.edu) 812 855 3974 (w) 812 333 6564 (h) mikes@iuvax.cs.indiana.edu 546 N Park Ridge Rd., Bloomington, IN 47408 Under construction: mikes@sir-alan@cica.indiana.edu