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From: ralphw@ius2.cs.cmu.edu (Ralph Hyre)
Newsgroups: comp.sys.m6809
Subject: 16k Coco purchase query
Message-ID: <1248@ius2.cs.cmu.edu>
Date: Tue, 4-Aug-87 16:24:43 EDT
Article-I.D.: ius2.1248
Posted: Tue Aug  4 16:24:43 1987
Date-Received: Thu, 6-Aug-87 04:28:58 EDT
Organization: Carnegie-Mellon University, CS/RI
Lines: 25

References:


Is a 16K Coco (presumably without extended ROM) worth $40 (new)?
Is there any hope I can add on enough (memory, mainly - probably through
the expansion connector) to run OS-9 level 2 without exceeding the cost
of a CoCo 3 system or other OS-9 capable system in the process?

If I have to buy the extended ROM I'm looking at $39 extra, I have some 64k
RAM chips lying around, does somebody make an expansion box for the CoCo that
plugs in and gives a disk interface [I figure I can get bare floppy drives
and such pretty cheap, as long as I can get the interface from somebody],
more memory (DAT-compatible 512k?), serial/parallel, etc? 

My memory is fuzzy, can I do machine language from BASIC without the
extended ROM? (I could live with cassettes and the bit-banger serial port
for some months if necessary - I'm hoping to make a quick-and-dirty 
communications processor out of the thing, if I can tie the bit-banger to
the interrupt line or do hardware handshaking it might work, but I'd rather
get real hardware.)

If I can get a REAL MULTITASKING system for $200 for hardware (machine+disk)
and $100 for software I'd be REAL HAPPY.
-- 
					- Ralph W. Hyre, Jr.

Internet: ralphw@ius2.cs.cmu.edu    Phone:(412)268-{2847,3275} CMU-{BUGS,DARK}
Amateur Packet Radio: N3FGW@W2XO, or c/o W3VC, CMU Radio Club, Pittsburgh, PA