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pcfans
Joined: 13 Feb 2014
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 Posted: Fri Sep 05, 2014 9:48 am Post subject: MITS Altair 8800b computer |
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| MITS Altair 8800b computer |
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pcfans
Joined: 13 Feb 2014
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| Posted: Fri Sep 05, 2014 9:48 am Post subject: |
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MITS Altair 8800b computer
Two toggle switch has been snapped, and I think it will not affect the booting process from powering up (Turnkey board handling this.). I will replace the snapped switch with new one.
This Altair 8800b shoud produced in year 1976.
The MITS produced CPU Board has a C8080 CPU, I'm not sure it is a C8080A or C8080B (it is not a C8080A or C8080B, the cpu in this board is Intel C8080-8, date coded: 7515!)
Behind CPU Board is a Front panel controller board.
And I can see 4 Mits produced 16KB Static ram board, the total RAM of this computer is 64KB at maximum.
And the 7th board behind Static ram board is a MITS produced turnkey board.
The 8th board probably a drive controller.
Last edited by pcfans on Wed Sep 10, 2014 9:10 am; edited 10 times in total |
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pcfans
Joined: 13 Feb 2014
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| Posted: Fri Sep 05, 2014 9:48 am Post subject: |
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MITS Altair 8800b computer
The back of the computer looks good, and I think the last letter behind serial number is "A".
Last edited by pcfans on Fri Sep 05, 2014 11:29 am; edited 1 time in total |
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pcfans
Joined: 13 Feb 2014
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| Posted: Fri Sep 05, 2014 9:49 am Post subject: |
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I will post more photos in next couple days.
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I'm focus on collection of 70s vintage personal computer now. here's the blog of my collection: www.vintage-computer.net (a lots of fine photos) |
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pcfans
Joined: 13 Feb 2014
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| Posted: Wed Sep 10, 2014 8:37 am Post subject: |
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| CPU board of Altair 8800b: |
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pcfans
Joined: 13 Feb 2014
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| Posted: Wed Sep 10, 2014 8:41 am Post subject: |
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CPU board of Altair 8800b:
CPU board version: REV 0 |
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pcfans
Joined: 13 Feb 2014
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pcfans
Joined: 13 Feb 2014
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| Posted: Wed Sep 10, 2014 8:48 am Post subject: |
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| Update will continue. |
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Vlasta
Joined: 15 May 2012
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| Posted: Wed Sep 10, 2014 10:53 am Post subject: |
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So cool!
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best rgds.
Steve |
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pcfans
Joined: 13 Feb 2014
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| Posted: Sat Sep 20, 2014 11:08 pm Post subject: |
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| Altair 8800b turnkey board: |
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pcfans
Joined: 13 Feb 2014
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| Posted: Sat Sep 20, 2014 11:09 pm Post subject: |
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| Altair 8800b turnkey board: |
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pcfans
Joined: 13 Feb 2014
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| Posted: Sat Sep 20, 2014 11:19 pm Post subject: |
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Altair 8800b turnkey board:
Update will continue, stay turned. |
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pcfans
Joined: 13 Feb 2014
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| Posted: Tue Sep 23, 2014 11:07 pm Post subject: |
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4th MITS static ram board, rev 1
Last edited by pcfans on Sun Oct 12, 2014 2:28 am; edited 1 time in total |
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pcfans
Joined: 13 Feb 2014
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| Posted: Tue Sep 23, 2014 11:07 pm Post subject: |
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4th MITS static ram board, rev 1
Last edited by pcfans on Sun Oct 12, 2014 2:28 am; edited 1 time in total |
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pcfans
Joined: 13 Feb 2014
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| Posted: Tue Sep 23, 2014 11:08 pm Post subject: |
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4th MITS static ram board, rev 1
Last edited by pcfans on Sun Oct 12, 2014 2:29 am; edited 1 time in total |
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