Old iron. Who knows what kind of animal this is?

Question

Iron

We have such an exhibit in the museum of computer technology (small local) (see photo below). It is the only one not signed (no sign), since no one can say exactly what it is.
Therefore, I ask a question to the habrosoobshchestvo.

First side


Second side


Side view


End

One external port, similar to a modem (for RJ-11 telephone line), is visible.

Closer Part 1


Closer Part 2 The


Internet says that Wyse had similar computers and that it could be an expansion board.
It looks like this jumpers.computed.net/m/UZ/30722.htm (be careful there are some annoying pop-ups).

And if it's a computer, how was it used?

Answer 1

Here it says in the description:

Vintage 1987 WYSE 80286 Motherboard 990176-01 & 990177-01 Daughter Board
This is a vintage motherboard with a Intel CoProcessor, hard to find

It appears to be a motherboard with a 286 processor (and an empty coprocessor socket in the second photo) plus a daughterboard with 1MB of memory.

Answer 2

This motherboard is from a 286 compatible clone from Wyse. On Ebay, the exact same board is sold with a coprocessor.
www.ebay.com/itm/Wyse-80286-Motherboard-80287-Intel-CoProcessor-/150617117737#ht_652wt_946

Answer 3

Yes, it's an 80286 motherboard. It's with a processor. It looks like the percentage is under this square metal cover.
An empty socket, most likely for the 287 math coprocessor
. There is still such a plan for the motherboard. They are commonly referred to as Single Board Computer (SBC).
It is used simply - it is stuck into a board with a regular ISA slot, from where it receives power.

Answer 4

On the 4th photo you can see the inscription 80286 Mother BRD
At the very 286th there is a worker, but his hands won’t reach the final deal with the disk system (he doesn’t see any disks or drives 5.25)

Answer 5

Judging by the input and the chips (logical arrays + correction chips), I would say that this is just a fax modem.

Answer 6

With the fact that this is a motherboard, I think we have decided.
It remains to be seen how it worked.

Answer 7

Oh, and I have a similar scarf 80486. I have no idea how to use it, but they say that it was plugged into the ISA slot at 286m.

Answer 8

Elementary, the processor and coprocessor on the 8086/88 motherboard were removed and this miracle beast was inserted, after which the machine became 286. Or do you need a smart link to someone?