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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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 Posted: Fri May 29, 2009 6:28 pm Post subject: Re: Home brew computer |
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| CPUShack wrote: | This is how it use to be done (and how NASA use to build all their puters)
And whats at its core? a pair of 74LS181 ALUs of course
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AWESOME...and board made by AUGAT! what could be better?
I assume this is from a land-based computer?
Do you own this piece of history, John?? slurps...  |
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smithy
Joined: 27 Apr 2008
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Location: Sydney, Australia
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| Posted: Fri May 29, 2009 6:57 pm Post subject: |
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I love old computers full of TTL, and what's better is you used to be able to build them yourself
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hugo929
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smithy
Joined: 27 Apr 2008
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Location: Sydney, Australia
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| Posted: Fri May 29, 2009 7:08 pm Post subject: |
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Looks like he has used lots of GALs to replace 10s or 100s ot traditional TTL
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Fri May 29, 2009 11:56 pm Post subject: Re: Home brew computer |
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| johnorun wrote: | | CPUShack wrote: | This is how it use to be done (and how NASA use to build all their puters)
And whats at its core? a pair of 74LS181 ALUs of course
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AWESOME...and board made by AUGAT! what could be better?
I assume this is from a land-based computer?
Do you own this piece of history, John?? slurps... |
nope dont own one, but could build one 
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donutty
Joined: 16 Feb 2008
Posts: 1122
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| Posted: Sat May 30, 2009 3:12 am Post subject: |
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| smithy wrote: | | Looks like he has used lots of GALs to replace 10s or 100s ot traditional TTL |
Yeah, in real TTL it would be 10 times bigger.
And the USB interface would be the same size again!
But still nice piece of work |
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Elar
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Location: Tallinn, Estonia
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frag_
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i440bx
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