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Vintage Computers Any vintage computer systems, calculators, video games etc., but with an emphasis on 1980s and earlier equipment.

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Old 19th Oct 2019, 9:17 pm   #1
nigelr2000
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Default What's this, any ideas ?

Digging about in an old drawer looking for a plug today I found this, I don't remember where it came from but it is 28 Pin DIL chip in a socket, maybe to protect the pins and it has the handy Graphics label on the top suggesting maybe it was an upgrade for an early computer..

Any ideas anyone
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Old 19th Oct 2019, 10:25 pm   #2
cmjones01
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Default Re: What's this, any ideas ?

That looks like a Sideways ROM for the BBC Micro. The 'Graphics' label reminds me of either Computer Concepts or Acornsoft as the publisher. I think they both did graphics extension ROMs but I could be wrong. It probably dates from about 1983-1984.

It'll be a 27128 (or 2764) under the label. Putting it in a BBC Micro or reading it in an EPROM programmer would soon identify exactly what's in it.

Chris
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Old 19th Oct 2019, 11:01 pm   #3
Andrew64
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Default Re: What's this, any ideas ?

I can confirm Chris is exactly right.

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Old 19th Oct 2019, 11:55 pm   #4
SiriusHardware
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Default Re: What's this, any ideas ?

Judging by the style of the box art it could be the Computer Concepts version.

https://www.everygamegoing.com/egg/l...e/Graphics-Rom
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Old 20th Oct 2019, 12:03 am   #5
hysteresis
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Default Re: What's this, any ideas ?

Quote:
Originally Posted by cmjones01 View Post
The 'Graphics' label reminds me of either Computer Concepts or Acornsoft as the publisher...
It was published by Computer Concepts.

Oops! Cross post.
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Old 20th Oct 2019, 7:01 pm   #6
nigelr2000
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Default Re: What's this, any ideas ?

Thanks Everyone, I never have had a BBC so gawd know where it came from.
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