Path: utzoo!attcan!utgpu!watmath!iuvax!mailrus!cwjcc!neoucom!wtm From: wtm@neoucom.UUCP (Bill Mayhew) Newsgroups: comp.sys.ibm.pc Subject: Re: AT single board computer Summary: Western Digital WDM-20 Message-ID: <1698@neoucom.UUCP> Date: 10 Aug 89 01:14:43 GMT References: <2359@husc6.harvard.edu> <40970017@hpindda.HP.COM> Organization: Northeastern Ohio Universities College of Medicine Lines: 49 > > I am looking for a single board microcomputer that is > AT compatible. It would be nice if it had one or Hi, Western digital makes a single-board (baby AT size) 12 MHz AT board. There are two models, the WDM-2 and the WDM-20. Both have the following features on board. Paradise autoswitch 480 EGA SIMM sockets floppy / hard controller parallel port 2 serial ports mouse port 1 XT and 3 AT card sockets Phoenix AT BIOS battery backed clock/calendar The WDM-20 can use up to 4 1 megabyte SIMMs, while the WDM-2 can use up to 4 256 Kbyte SIMM chips. The on-board video can also be disabled on the WDM-20. I recently ordered some WDM-20s for our lab. The going price is about $650 without any RAM. I also ordered some 1 megabyte SIMM modules to populate them for about $250 each. I think we ordered them from USA Flex or a similar place (check out the current issue of Computer Shopper - last few pages in the very back). The WDM-20 is an excellent board that is very compatible and very, very well manufactured. I'd recommend it highly for an afforable clone system. There are cheaper boards, but you might get burned. All said, I was still able to build my clone AT systems with case, paper-white monitor, and 20 meg drive for $1468 each. Beware no-name 16, 20, etc MHz AT boards, especially if there is an Intel '286 on them; Intel does not make any '286s faster than 12 MHz. Harris, however, does make a fast '286. I should add that I saved money by ordering the computers in unassembled form. It takes about 30 minutes or so to assemble a system, as there isn't much more to to than bolting the items into the case and plugging in the assorted cables, then formatting the HDU. Bill wtm@neoucom.edu or wtm@impulse.UUCP NEOUCOM Division of Basic Medical Sciences M-117 4209 State Route 44 Rootstown (what a name), Ohio 44272-9995 USA (216) 325-2511