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  1. Replies
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    Hello. I am not familiar with the M20. I know...

    Hello. I am not familiar with the M20. I know that it's a PC that was released in 1982, I know that it's Olivetti's own platform, from before they entered the IBM PC market. It was part of the L1...
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    I got an Olivetti P500

    I bought this Olivetti P500 from Italy. I was expecting the worst but it didn't arrive in that bad of a shape.. It's a 386SX Microchannel PC from 1989.

    I believe development on it started in...
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    I have a 200VA 115 to 230V transformer. I did not...

    I have a 200VA 115 to 230V transformer. I did not know what volt-amperes were when I got it, but I thought 200 sounded like it was a lot... I was sick and sleep-deprived because of the illness so I...
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    Question about transformers

    Hi. I have a question about transformer capacity. If I have a transformer rated for 200VA (~1.74A), and I hook up a 2A load to it, what is gonna happen? Is the load gonna get starved of current?...
  5. Do those old full-height Tandons that IBM used...

    Do those old full-height Tandons that IBM used count? Because I've never had a single issue with those either.

    But anyway let's see what this guy will do with his Seagate hard drive. Formatting it...
  6. Wow, am I lucky for once? I've never had a single...

    Wow, am I lucky for once? I've never had a single issue writing 360k disks in 1.2M drives, and reading them back in 360k drives.

    And my 133MHz Pentium IBM PC 750 can talk to my 4.77MHz 8088 IBM PC...
  7. I'm sure it'll work again. But before playing...

    I'm sure it'll work again. But before playing with it again I'd make sure to have a plan to be able to act quickly.

    You can write 360k disks with a 1.2M drive, it doesn't have to be an old 360k...
  8. That drive is around 30 years old. If it's...

    That drive is around 30 years old. If it's intermittent like that it's unfortunately possible that the low-level format is getting old. Perhaps it's fading away or things aren't quite where they used...
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    518

    About fin combs. If the fins can be straightened,...

    About fin combs. If the fins can be straightened, why do they ship them with the fins in zigzag patterns? I wonder if the fins could bend or break since they are sort of zigzagizally-compressed into...
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    518

    Clogged dehumidifier

    Hello. I found a dehumidifier. I'd like to run it but it's extremely dirty, there's a thick layer of brown tobacco on the radiator. The coils in front block access, and the fins are extremely...
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    Sorry I missed this when it was posted. That's...

    Sorry I missed this when it was posted.

    That's really cool. Yeah the M380/C is one of the original three M380 computers from 1987. They were the first 386 PCs Olivetti made. Alongside it was the...
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    Can I add more RAM to my modern computer?

    Hello. I'd like to add RAM to my computer but unfortunately it won't take more than 4GB. In the 80's there were expansion cards that added memory to your computer, beyond what the main board could...
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    What is the point of speed, especially for backup...

    What is the point of speed, especially for backup purposes?
  14. Replies
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    4,844

    Thank you all for sharing your opinion. :-) Looks...

    Thank you all for sharing your opinion. :-) Looks like no one here likes optical discs huh. I took good note of what I read here.

    Do you guys think it's a shame that 5 1/4" hard drives do not...
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    6,405

    What is the best web browser?

    Hello. I was wondering what you guys' opinion on this was. I remember back when the internet was good I used Internet Explorer. But it became buggier and buggier with the increasingly ugly websites...
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    M300-25 is MCA, look at cap23.pdf. The P500/E is...

    M300-25 is MCA, look at cap23.pdf. The P500/E is simply an M300-25 with a strange name. There's also the M480-30, it's a P750 with a different name. And then there are the very weird M6 500 suprema...
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    What is the best storage media?

    Hello. I am assuming many of you guys keep backups of large amounts of data. What would you say is the best media to store data? Right now I have DVDs and an hard drive, neither of which I trust....
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    I got an Olivetti M300-25 (P500/E)

    I bought this Olivetti P500/E from Italy. The P500/E is "more commonly" known as the M300-25. "More commonly known" as in no one has ever heard of both of them, but on the chance that they have,...
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    Does someone know why there are capacitors on the...

    Does someone know why there are capacitors on the motherboard of the Macintosh SE/30 in the first place? Those gray surface-mounts and the two axial ones, are they all there to filter the...
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    Wow it seems that you are right. I thought a...

    Wow it seems that you are right. I thought a leaky capacitor was an electrical term, apparently it's also a literal term. I'm pretty sure it's the first time I see such a thing. The axial caps are...
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    I found a Macintosh SE/30

    I found this computer at an antique store. I paid 60 dollars for it which is ~ what old Macs are worth. It came with a power cord (neat), a telephone cable (neat), an Apple Extended Keyboard II with...
  22. PS/ValuePoints are weird. IBM created them as a...

    PS/ValuePoints are weird. IBM created them as a new series of PC-compatibles before they came up with the lower-end PS/1-successor Aptiva line and higher-end PS/2-successor PC line. But they were...
  23. The PC 750 is also a 3.3V socket 5 Pentium system...

    The PC 750 is also a 3.3V socket 5 Pentium system but it has more features, such as onboard audio and IBM's SelectaBus technology so its motherboard is bigger, around the size of an IBM PC, and it is...
  24. That's for the PCI, OK. That's strange. On the...

    That's for the PCI, OK.

    That's strange. On the PC 750 there's a connector on the motherboard for that cable that's unused in your system. Again I don't know what it's for. I guess some circuitry...
  25. Power connector on IBM PC 750 (6885) riser card

    Hi. Does anyone know why the riser cards on IBM PC series computers have a power connector? Unfortunately I've had 3 of these computers, but I don't remember if the power supply was plugged into them...
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