Image Map Image Map

Search:

Type: Posts; User: Roland Huisman

Page 1 of 20 1 2 3 4

Search: Search took 0.04 seconds.

  1. Ah good point. Jos Dreesen pointed me also to...

    Ah good point. Jos Dreesen pointed me also to RogAlgol stuff at bitsavers.
    But I didn't see the version differences like you showed here. To be honest, I don't have
    any clue about how to use the...
  2. Yes that should work as well with a FACIT N4000....

    Yes that should work as well with a FACIT N4000.

    - F4 opens a new file and asks for a file name
    - Now you can sent the data to the computer.
    - F5 closes the file.
    - F6 clears the rubbish off...
  3. Well, I don't know the history of the tapes....

    Well, I don't know the history of the tapes. Maybe it was the work of a student to make some sort of proof of concept.



    Don't blame the museum on anything... That museum just got a bunch of...
  4. Vince mentioned GTTY which I use quite often to...

    Vince mentioned GTTY which I use quite often to upload paper tapes to my machines. GTTY can do exactly
    what I want. You open a new file, store the bytes which you throw into the COM port, then close...
  5. Ah off course! Didn't think about that... ...

    Ah off course! Didn't think about that...



    No... I have the original paper tapes. I just read the plain 8 bits from tape with the PDP8
    and sent that to the serial port. That is done by that...
  6. Yes I know, but in this case the full length of...

    Yes I know, but in this case the full length of the tape is punched for the highest bit. So this is not a parity in this case.



    It seems that it is that FOCAL game indeed. You can read the...
  7. Well it looks to me that this might be the...

    Well it looks to me that this might be the RogAlgol compiler written in Algol.
    there is a binary tape starting at address 200. That might be te compiler itself.
  8. I made a quick YouTube film about reading the...

    I made a quick YouTube film about reading the tapes...
    That nasty H960 case fan needs new bearings -again- :(

    https://youtu.be/KjgM3cpgiIk

    Looking at the structure of these .PA programs they...
  9. That Algol 60 seems to be ...

    That Algol 60 seems to be a piece of Dutch history. Edsger W. Dijkstra worked on the first
    version for the Electrologica X1 And Edsger W. Dijkstra was also the inventor of the interrupt :D
    That...
  10. I made a little program for the PDP8 to sent the...

    I made a little program for the PDP8 to sent the PC04 data to the second serial port.



    I used Tera term to read the ASCII files. These are attached here.
    But I had to set Tera Term to 7+1 to...
  11. Got some PDP8 papertapes and books today

    Today I got some papertape software and some PDP8 books from a Dutch museum.
    I have seen a few of them online already. I was wondering if some people recognises the others...

    61178

    This seems...
  12. Nice system, I guess that these machines were...

    Nice system, I guess that these machines were mostly used for laboratory use?
    It looks a bit like a PLC. How do the ROM modules connect to the system? Are there pins at the bottom?
  13. Hi Volker, Yes that is right, I used the 7442...

    Hi Volker,

    Yes that is right, I used the 7442 also in several of my redesigned Omnibus boards.
    But as you say the truth table is different when you decode higher number outputs.
    So you should...
  14. How nice, I've never thought about these...

    How nice,

    I've never thought about these Tektronix machines. It seems there is some sort of graphics
    Tektronix computer waiting for me. Really wonder which model it is. In the past I have seen it...
  15. DEC8251 or N8251 wanted for reference

    Hello everyone,

    I have a failing M8330 timing generator in my PDP8/F. To test the DEC8251 with my
    HP10529A comparator I bought a few N8251N from Ebay.
    My comparator gave an error on one of the...
  16. Well, you never know where these prices end. But...

    Well, you never know where these prices end. But not shipping internationally mostly reduces the final price.
  17. Replies
    27
    Views
    2,884

    Well there is a huge amount of Digital Group...

    Well there is a huge amount of Digital Group documents. And guess what, the
    documents Dave revered to are with the system. Even the papers to design the
    boards are there. These drawings are for...
  18. Replies
    27
    Views
    2,884

    So I found the Mark 8 binders. There is one...

    So I found the Mark 8 binders. There is one binder labelled 8008 Basic.
    In that binder there is a book Scelbal. (I found that book online at scelbi.com
    But the page order of that online version is...
  19. Replies
    27
    Views
    2,884

    Quite a list of replies :-) Dave, thanks a...

    Quite a list of replies :-)



    Dave, thanks a lot for finding this stuff! I think I will put a 1702A with known data
    into the machine. Then I can check if the ROM is at that address. The reason...
  20. Pc8e is the name of the m840 card and this card...

    Pc8e is the name of the m840 card and this card is used with a Pc04 reader puncher.

    I know of people who turned a Pc05 into a Pc04 with a bit hardware mods.
  21. There were some third party models as well like...

    There were some third party models as well like Remex.
    And off course you can use a teletype on a serial card.
  22. Replies
    27
    Views
    2,884

    Hi Dave, The EPROM is a project which I have...

    Hi Dave,

    The EPROM is a project which I have to start over... It is too long ago :-)
    I had some contact with Martin Eberhart about reading the chip.
    He told me that he has seen some chip...
  23. Replies
    27
    Views
    2,884

    Can anyone tell me where I can find little test...

    Can anyone tell me where I can find little test programs to test a Mark 8?
    I've wiped the dust off of my Mark8. The last time I had the machine ready
    to select a memory address and put data into...
  24. Replies
    13
    Views
    2,652

    Still searching for a Tei FDC-2 or FDC-3 floppy...

    Still searching for a Tei FDC-2 or FDC-3 floppy controller and the schematics + software for that board.

    Did anyone find a similar system in the past years? It would be great if
    someone could...
  25. Replies
    0
    Views
    92

    Holborn 6100 new hard disk

    Oh bummer, the Quantum Q540 hard disk in my Holborn 6100 let me down.
    So I replaced it with a Fujitsu full height 5.25" drive. Always sad that restored stuff gets
    broken again. So over time you...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4