Date : Mon, 05 Aug 1985 13:26:19 EDT
From : Robert Bloom AMSTE-TOI 3775 <rbloom@apg-1.ARPA>
Subject: Multiuser Micro Info Request
I'm depressed.
I've been attempting to determine just how I can best upgrade my
office computer. (I work in a U.S. Army RDT&E organization.) I
thought I was in good shape when the Army signed a open contract
to buy Intel 310 systems, but there is a problem. To get the
capability I want, I need to spend over $50k if I go with the
equipment listed on the (mandatory!) Army contract.
I have a fairly good idea that the capability I want is available
for much less than the aformentioned $50k - but I don't know
quite where. Therefore, I would like to solicite responses from
anyone of what I should mention as alternatives to my puchasing
agent when I go in to fight the mandatory part of the contract.
I need names, addresses, specifications, prices and everything
else available to get the best available system that meets the
requirements and is the least expensive. (I'm a taxpayer too!)
I just don't believe the 310 is it.
The remainder of this message contains what I am using now, my
upgrade requirements, what I have to buy from the Intel contract
to meet those requirements, and some possible alternates to the
Intel system.
My current system consists of a NorthStar Horizon w/18M HD, 5
Televideo terminals, a NEC printer, a IDS dot-matrix printer and
a Hayes modem. It is running a multi-user OS ('TSS/C' - probably
quite close to MP/M) with WordStar, dBase II, Mex, and SuperCalc
as the main applications software. This system meets my require-
ments except in the following areas: it is too slow under load [5
users on one Z80!], does not have enough user terminals [has 5, I
need 8], the disk space is marginal [has 18M, I want ~30-40M),
and communication with remote systems is awkward [I had to hack
it badly to get it to work at all].
The two printers and modem will be used on the new system - if I
can also use the 5 terminals that would be even better. The
Horizon main frame and HD I suspect must go.
Requirements (in order of priority)
1) must run WordStar, dBase, and SuperCalc (I had enough
trouble training my people in these, I don't want to start over!)
2) shared files (single-user access to any r/w file, locked
to other users until released, multiple access to any r/o file.)
3) queued output to 2 printers
4) two multiple access commo ports to the outside world -
one 9600 baud direct connect, one dial-up. (dial-IN access NOT
required!)
5) adequate processing speed for all users (TSS/C's major
problem is speed - I will buy all the speed improvement I can.)
6) 8-simultaneous users (single-tasking ok) with access from
each user's desk. Reset of 'hung' users w/o system reboot.
7) 3MegBytes HD storage per user, not including system and
program storage. (I figure a minumum of 30M, 40M desired.)
8) Tape backup system for HD
Note that my current system satisfies the first 4 items above; I
will not accept a 'new' system that does less that the above even
if it does that faster!
Intel 310 configuration:
The basic problem with the 310 is that it is a UNIX box and
cannot satisfy #1 above in multi-user. Therefore, one needs to
run the applications at the workstations, not in the central box
- and that means using pc's. (The Wyse 1100 pc is included in
the contract for just this purpose.) To satisfy #2 above, the
pc's must be netted to the central HD via a network of some type.
So, the configuration looks like:
8 Wyse 1100 pcs @ $1,926 (IBM-clone, 265k, 2 floppies)
8 Personal Network Interface Interface Unit @ $1,650 (this
board connects the pc to the OpenNET LAN, the cheaper NIC steals
memory from the pc stopping it from running dBase)
9 10 foot Transceiver Cables @ $70 (+ $15/10 foot over 10')
1 10 port Intellink @ $1,695 (central node on LAN)
1 Intel 310 4-user @ $11,245 (4-user includes 80286, 1MRAM
and 40MB HD, smaller systems don't)
1 Ethernet commo controller @ $1,795 (connects 310 to LAN)
1 Tape subsystem on expansion chassis @ $3,339
The total (includes transportation and installation but WITHOUT
SOFTWARE) is $45,617. A 'OpenNET' configuration is slightly
more expensive than the 'Intellink' configuration cited above.
Software would easily push it over $50k as one needs 8 copies of
WordStar, dBase and SuperCalc.
As I see it, a TurboDOS or similar system (NorthStar Dimension?)
that has multiple processors would be best for this application.
Something on the order of (pure guesses on the $ amounts):
Main Frame/HD/master processor - $5,000
Tape drive added to main frame - $1,000
16-bit slave processors - 8 x $1,500
RAM disk for speed - $2,000
3 more terminals - 3 x $700
Comes to a total of 'only' $22,100 w/o software. That's less
than HALF the above and does the same thing. (except run UNIX,
but running UNIX is a nonrequirement.)
So, anyone have any ideas of what and where I could get something
better rather than spending $50k of 'your' money? Please reply
directly to rbloom@apg-1, I will synopsize results and post
later. This is strictly a request-for-information and does not
obligate anyone for anything and does not represent nor indicate
U.S. Army policy. Names used above are copyright somebody else.
-bob bloom