Today I Received...

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Sparrowhawk
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Re: Today I Received...

Postby Sparrowhawk » Mon Jan 25, 2021 11:37 am

These arrived today - a good way to support the Centre for Computing History (https://www.computinghistory.org.uk/) and get a little extra something for your retro collection.

home_computer_cards_m.jpg


a.k.a. Jean-Yves !
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mk79
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Re: Today I Received...

Postby mk79 » Mon Jan 25, 2021 11:42 am

Ooooh, how cool! Want


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Pr0f
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Re: Today I Received...

Postby Pr0f » Mon Jan 25, 2021 12:01 pm

Top Trumps ? ;-)


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mk79
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Re: Today I Received...

Postby mk79 » Mon Jan 25, 2021 12:33 pm

OK, ordered :-) Expensive shipping, but my young one is driving me insane with horse-based card games, it's worth a try...


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Sparrowhawk
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Re: Today I Received...

Postby Sparrowhawk » Mon Jan 25, 2021 2:54 pm

mk79 wrote:OK, ordered :-) Expensive shipping, but my young one is driving me insane with horse-based card games, it's worth a try...

:D

How would you decide which trumped which: Z80A, 6502... Holy wars have been fought over less.

Didn't realise that the Altair 8080 shipped with a mere 256bytes of RAM!


a.k.a. Jean-Yves !
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Pr0f
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Re: Today I Received...

Postby Pr0f » Fri Feb 19, 2021 2:18 pm

A nice little find on Ebay

PSI board.jpg


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RalfR
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Re: Today I Received...

Postby RalfR » Fri Feb 19, 2021 6:47 pm

What's it?


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Pr0f
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Re: Today I Received...

Postby Pr0f » Fri Feb 19, 2021 7:18 pm

Its a self contained board, the large chip is a philips 90c100 - which is 68K code compatible, it is mostly hardware compatable too, but has on board serial and I2C driver too

The board has 32 I/O lines - 16 can be used to drive an 8x8 keyboard matrix, the other 16 are places on the 50 pin connector. It has on board clock chip and 4 channel ADC and 1 channel DAC - for analogue signals. Also supports a standard 2 line LCD and RS422 output. It came with some documentation, and images for the 2 missing ROM chips - so tempted to fire it up and see it working.

I did wonder if Tony Tebby's Stella might run on it, but never seen the software anywhere. It runs a Real Time OS called MINOS and can run programs written in Modula-2 or 68K assembler.

I will try porting EHBasic to it as that runs on a 68K


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RalfR
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Re: Today I Received...

Postby RalfR » Fri Feb 19, 2021 10:14 pm

Looks like a professional made board (PSY Systems...as printed on the top of the board?) Never heard about it.


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Pr0f
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Re: Today I Received...

Postby Pr0f » Fri Feb 19, 2021 11:09 pm

I think it was designed for industrial control type applications - but packs quite a punch in a small board.



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