Any interest? Basic Four on ebay

From: Merle K. Peirce <at258_at_osfn.org>
Date: Mon Aug 19 07:08:00 2002

We've got one of the old blue 1200's. We haven't fired it up yet, but
some day. they're really attractive machines, nicer looking than our 8000.

On Sun, 18 Aug 2002, Mike wrote:

> From: Joe <rigdonj_at_cfl.rr.com>
>
> > Actually the same seller had TWO of them. There were no bids on the
> one below despite the fact that the opening bid was only $25! FWIW One of
> our well known Florida pack-rats that's on this list also has a working(?)
> BASIC 4 and I think he has docs and SW for it.
>
> That's Georgia pack-rat, thank you. Hell yep, David Greelish and I hoisted
> his old Model 1300 Basic Four with two drives in it up a staircase with the
> help of another nearly killing all three of us. I later got it down that
> same flight of stairs myself without serious injury (so far) and it's still
> nearby.
>
> I do have BOSS, Business Basic and some business apps for it on some RL02ish
> disk packs. I also have the Planning & Installation and service manuals on
> the CPU (LD1200 cpu, SM1101 semiconductor memory, SM8001 and LD8001 sync
> comm controller, and SM9000 and LD9000 power supply) DRIVES, TERMINAL, and
> PRINTER.
>
> Some info from SM1029, July 1 1976 Service Manual for Model 1300 CPU
>
> The model 1300 CPU is a general purpose, 8-bit, microprogrammed
> minicomputer (lots of ttl). It is the primary unit of all BASIC/FOUR
> computer systems. The CPU has full I/O capability, an interrupt system, a
> DMA channel for data transfer between the CPU and one or more disk drive
> units, and an internal main memory of up to 65k. The memory cycle time is
> optionally 1.0, 0.8, or 0.6 microsecond. Macroinstructions are implemented
> by executing a series of firmware microinstructions stored in the
> microprogram ROM.
>
> Elsewhere in that manual it also states that the capability of two CPUs to
> exhange data directly is also available as an option,
>
> So, I wish the other one were closer and am glad it's not.
>
> ;)
> - Mike: dogas_at_bellsouth.net
>
>
>
>
>

M. K. Peirce

Rhode Island Computer Museum, Inc.
Shady Lea, Rhode Island

"Casta est quam nemo rogavit."
              
              - Ovid
Received on Mon Aug 19 2002 - 07:08:00 BST