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Type: Posts; User: Randy McLaughlin

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  1. Replies
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    Do you have any ice boards fore sale, and if so...

    Do you have any ice boards fore sale, and if so how much are they?

    Thank you,


    Randy
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    A label cant start with a digit or special...

    A label cant start with a digit or special character.

    A register can't be a label in many assemblers, some it's fine.

    I find short label names can be confusing so I try not to use single letter...
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    7,988

    Cisco used to use SUN computers (but could have...

    Cisco used to use SUN computers (but could have chosen any number of computers to run their software) but no longer, people used to drive Studebakers - therefore Cisco should be thankful to...
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    7,988

    DRI was cross compiled on everything from an MDS...

    DRI was cross compiled on everything from an MDS system to VAX's - I have some of the in-house DRI disks that includes the VAX sources.

    DRI used cross development systems CP/M could never run on...
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    7,988

    I can go back hundreds of years and talk about...

    I can go back hundreds of years and talk about using punch cards to program looms, or being used to census. They were important and can still be seen today.

    In the 1970's a computer revolution...
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    Are you trying to put words in my mouth - I...

    Are you trying to put words in my mouth - I stated that the S100 wasn't the first and may be the worst. I never claimed the S100 bus invented nor was the first in anything. I also stated that high...
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    You are just trying to be picky. The Altair was...

    You are just trying to be picky. The Altair was originally a non-bussed system but for commercialization it was made with a bus. Every part of the Altair was designed to be replaced/upgraded. ...
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    As far as memory parity the early dynamic ram was...

    As far as memory parity the early dynamic ram was impossible and the early static ram was luckily low density and very expensive (2102's were between $9.00 and $11.00 - constantly changing) a few...
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    I admit it I was wrong - it was four cards wired...

    I admit it I was wrong - it was four cards wired together - when you get older somethings get a little mashed up:

    "In the first design of the Altair, the parts needed to make a complete machine...
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    The Altair started as three boards wired together...

    The Altair started as three boards wired together with no bus. The bus was created when sales orders came rushing in. They were able to buy a bunch of 8080 chips with blemishes at a huge discount...
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    I have seen a medical experimental lab that used...

    I have seen a medical experimental lab that used an S100 buss based cards - they used the buss for power and interconnections but all the boards were custom wire-wrapped cards.

    I have seen S100...
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    While many process control systems were other...

    While many process control systems were other busses there were lots of S100 ones also - Cromemco had a good slice of that pie.

    If you have ever seen a Cromemco system two you would know it is...
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    Since I have seen a number of racks like that I...

    Since I have seen a number of racks like that I would guess it was a process control system, some would be blank plates others interfaces to control industrial equipment under control of that...
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    Its not a good picture of the cage but it looks...

    Its not a good picture of the cage but it looks like the Cromemco cage they sold for custom/industrial applications, if so yes it's an S100 buss.

    Cromemco is and was very proud of their name - and...
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    A kaypro 10 without a hard disk is basically a...

    A kaypro 10 without a hard disk is basically a Kaypro 4'84. It is possible to getting it running as a floppy based system.

    The WD controller is very well documented and uses a simple 8 bit...
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    The Kaypro 10's Floppy drive was usually direct...

    The Kaypro 10's Floppy drive was usually direct drive and had no belt. Any PC compatible drive that fits will work, including a 3.5" drive.

    The Kaypro 10 uses an MFM drive and has two boards to...
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    There are several sites with Kaypro disk and ROM...

    There are several sites with Kaypro disk and ROM images like:

    http://www.retroarchive.org/maslin/roms/kaypro/index.html

    Be sure it's the Z80 that's missing and replace with Z80A or better (4MHZ...
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    Like I already said it looks like it was a...

    Like I already said it looks like it was a complete CP/M machine including an 8" disk controller. When you get the system in you might see if it has a board with a 50 pin connector and see if it...
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    Deramp.com has an altair compatible disk...

    Deramp.com has an altair compatible disk controller (that allows a PC to host image files or use real drives) with 64K RAM, the 8080sbc has 64K of RAM (any major part of the SBC can be disabled), and...
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    If it is a 10A system (not just early but one of...

    If it is a 10A system (not just early but one of the first couple hundred ever made) I would recommend keep it original to a degree:

    I would consider a small (200 watts or so) step down...
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    I doubt you have the 10A version but if you do...

    I doubt you have the 10A version but if you do then it should draw less than 200 watts, the 28A draws less than 500 watts.

    I suggest you wait and see what you have, by far the PS-28U was the most...
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    All this chatter and it can be strapped to...

    All this chatter and it can be strapped to 220vac:

    http://classiccmp.org/dunfield/imsai/index.htm

    Good news, and I do recommend keeping the linear PS-28U if your computer has the same taps. ...
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    A fuse won't blow before the 28A most traces will...

    A fuse won't blow before the 28A most traces will blow before the fuse.

    I would guess anyone working with computers for 40 years or so have seen burned boards When the trace is easy to get to and...
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    In 1975 Imsai came out with a 10A power supply...

    In 1975 Imsai came out with a 10A power supply (only twice as good as the Altair) but very quickly they went to 28A there were between 100 and 200 machines* that had the 10A (serial numbering started...
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    I think you are confused - the Imsai has a great...

    I think you are confused - the Imsai has a great power supply, the Altair is the one with a puny power supply - really a joke of a power supply.

    I've run many Imsai computers with a full chassis....
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