• MrFinnbean@lemmy.world
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    24 hours ago

    I feel like a relic…

    I used to have disc with kickstart that i needed to use so my computer would boot.

  • doingthestuff@lemy.lol
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    1 day ago

    My first PC was a Timex Sinclair 1000 and I wrote a text-based choose your own adventure game in basic for it and saved the program on audio cassette.

  • Cyrus Draegur@lemmy.zip
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    2 days ago

    “do you know what ps/2 ports are?”

    “holy cow, PlayStation 2? you must be AT LEAST 25!”

    [dying inside intensifies]

      • mfed1122@discuss.tchncs.de
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        3 days ago

        Please explain? I get that the chubby bird is speaking assembly, but I’m sure there’s more to it than that?

        • cheet@infosec.pub
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          3 days ago

          PS2 keyboards use interrupts rather than polling in USB, meaning every time a key is pressed the CPU stops what its doing to process it.

            • dan@upvote.au
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              2 days ago

              Super IO does still use interrupts as far as I know. The PS/2 protocol is interrupt-driven, so it’s not possible to use a PS/2 keyboard or mouse without interrupts.

          • Deebster@infosec.pub
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            2 days ago

            And having to pick your IRQ when installing anything into your machine, and the weird bugs that could happen if you mucked it up.

        • Aurelian@lemmy.ml
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          3 days ago

          Keyboard slows down the CPU because it gets priority over whatever the CPU is working on so the keyboard could cause your system to lag.

          Back then all we had was single core CPUs.

  • DeadMartyr@lemmy.zip
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    2 days ago

    I actually wanted a PS2 port because it works with interrupts rather than polling but they aren’t really included anymore.

    I feel like they don’t make boards for people like me who want small boards with a super niche port.

    When a MoDT Mini-ITX board comes out with a PS2 port I will buy that instantly

  • Obinice@lemmy.world
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    2 days ago

    Are these not still in use?

    I’ve not built a tower in a few years granted, but the last one I built had PS2 ports. Heck it even had VGA for the onboard graphics.

    • josefo@leminal.space
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      3 days ago

      Don’t forget the serial input for gamepads and joysticks in the dedicated sound board for some reason

      • BigDanishGuy@sh.itjust.works
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        3 days ago

        Except that wasn’t a serial port, it was midi, and the reason it was on the sound card was because the input was analog.

        Your joystick was just two fancy potentiometers, and your soundcard decoded the voltage on the middle legs into a position.

        Soundcards handled joysticks because they had the fastest ADCs.

        • cmnybo@discuss.tchncs.de
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          3 days ago

          They didn’t even use an ADC. They used 555 timers to produce a pulse. They measured the length of the pulse to determine the potentiometer position. Since there are 4 analog inputs, they typically used the 558 timer which is the quad version of the 555.

          • BigDanishGuy@sh.itjust.works
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            2 days ago

            And here I thought I had it all figured out. But it does make sense. Doing it with an analog signal introduces noise and measuring pulse widths is going to be simpler.

        • cartoon meme dog@lemmy.zip
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          2 days ago

          huh, i thought it was just because “owning a sound card” and “likely to play games” was the biggest overlap of the Venn circles.

        • HugeNerd@lemmy.ca
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          2 days ago

          Except that wasn’t a serial port, it was midi, and the reason it was on the sound card was because the input was analog.

          Considering MIDI stands for Musical Instrument Digital Interface, I have no idea what you’re trying to say.

        • grue@lemmy.world
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          3 days ago

          More info: https://en.wikipedia.org/wiki/Game_port

          The 15-pin D-sub connector itself was apparently a combination of analog and digital. It had to be, since MIDI is digital (it’s right there in the name: Musical Instrument Digital Interface). TIL it wasn’t all digital.

      • mercano@lemmy.world
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        3 days ago

        Early PC only had 5 card slots, and the only jack on the motherboard was the keyboard. One slot is going to be used by a video card, one’s probably being used by a hard drive controller, one’s probably used by a parallel + serial card. Soundcards also included controller ports to try to save a slot.

        • jaybone@lemmy.zip
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          3 days ago

          I thought sometimes they called them game ports (for the joystick.)

          I reasoned if you are installing a sound card, you are probably doing some gaming, so it made sense to sort of bundle those together.

          • the_crotch@sh.itjust.works
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            2 days ago

            Its on the sound card because it’s a midi port. Its designed for connecting a keyboard (as in electronic piano). Most people used it for gamepads but that’s not what it was there for.

      • Daemon Silverstein@calckey.world
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        3 days ago

        @[email protected] @[email protected]

        Technically speaking, the joystick involved analog voltages to be converted to digital signals… And what else have ADC (analog-to-digital converters) chips? Soundcards, because ADCs are used to convert mic input, alongside the “line in”, both of which are analog voltages, into PCM signals, which are discrete (as in “non-continuous”) streams of bits. Something inverse happens for “headphone”, “speakers” and “line out” pins: a PCM stream coming from the sound driver is converted to analog voltages using a DAC.

        While other ports also happened to deal with analog<->digital conversion, a soundcard was particularly specialized at this job, alongside graphic (VGA) cards (VGA has lots of analog signals), but graphic cards were already too busy with thousands/millions of pixels and, well, with computation of graphics.

        Other boards aren’t so fitting for analog-digital job. For example: a NIC (Network Interface Card) already deals with digital signal so, theoretically, no conversion is necessary from/to analog. Parallel ports (those for printers) also natively deals with digital signals. Expansion cards with USB ports, same thing. And so on…

        (Apologies for my blank reply if my deletion didn’t federate due to insufficient Sharkey-Lemmy federation, I mistyped enter as I was getting ready to write my message)

      • bountygiver [any]@lemmy.ml
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        3 days ago

        And because the PC only have 1 serial port, you disconnect the printer and use a parallel to serial adapter.

        • III@lemmy.world
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          2 days ago

          All the naysayers never used a Gateway AnyKey keyboard… their loss.

          • Jo Miran@lemmy.ml
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            2 days ago

            Such nice keyboards. My Gateway 2000 was from 1991 and I believe they were pretty top notch at the time. It wasn’t until later that they went to shit. Through all the years and the massive amounts of mods, it didn’t fail until I retired it sometime in the mid to late 2000’s and only because home routers now did what it could do…faster and for a lot let power. It’s still in storage and I bet that if I powered it on today, it would boot.

      • Psythik@lemmy.world
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        3 days ago

        Born in '88 and this was also my childhood. But to be fair, my parents bought the PC from Sears so it was probably an older, budget model. It ran Windows 3.1 and had a 16 MHz 386 with the Turbo button.

        • grue@lemmy.world
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          3 days ago

          My 286 had PS/2 ports instead of the obsolete DIN keyboard/serial mouse.

          smug_look_of_superiority.jpg

  • FiveMacs@lemmy.ca
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    3 days ago

    I raise

    edit, actually, it might have been on the back…it’s been forever since I touched one

        • threeonefour@piefed.ca
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          3 days ago

          I always see those videos where people give kids a walkman or a rotary phone and ask them to figure out what it is or how it works. I’m imagining some medieval merchant handing me an abacus and laughing because I can’t figure it out.

          • tetris11@lemmy.ml
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            3 days ago

            It’s little endian, so the beads on the far right are used to outnumber the big endian beads at the top on the woke left. After several computations, the middle section is just gone

              • zerofk@lemmy.zip
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                3 days ago

                You know how some languages write left-to-right, and some rught-to-left? Endianness is that, for numbers.

                Or another analogy is dates: 2025/12/31 is big endian, 31/12/2025 is little endian. And 12/31/2025 is middle endian. Which makes no sense at all because the middle is, by definition, not an end.

                • TheRedSpade@lemmy.world
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                  3 days ago

                  I stand corrected. No idea what I was reading (several years ago), but whatever it was made it seem way more complicated. Maybe it was just an explanation from somebody who didn’t know.

              • tetris11@lemmy.ml
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                Big Endian    Little Endian:
                 
                 "1010"         "1010"
                  ||||           ||||
                 [1248]         [8421]
                
                 (sum the numbers 
                  corresponding to a 1)     
                
                 1+4=5          8+2=10
                

                Depending on whether the order of binary comes from the left (Big Endian) or from the right (Little Endian), the binary number of “1010” can equal 5 or 10


                (My original comment was buzzword nonsense though)

              • pinball_wizard@lemmy.zip
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                3 days ago

                Ouch. I had to learn endianness once to solve a real life serialization bug. It sucked. I learned it for just long enough to correct the code for the corner cases involves, and then slept and forgot everything about it.

      • waggz@programming.dev
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        3 days ago

        This. this is my childhood. Digging through discount bins at blue light specials in Kmart for cartridges and copying BASIC line by line from a magazine and recording it on cassette tape so we could play Yahtzee on the TV.

      • rumba@lemmy.zip
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        3 days ago

        We had one of those in school. One per classroom. We had one educational game on it. Since there was only one, they would sit us down at it in pairs and we’d get 5m to play on it. I think I got to use it maybe three times in a given year.

      • zwerg@feddit.org
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        3 days ago

        Me too… my first code was for Commodore PET. Then I got an Amiga. Sad day when Commodore folded.

        • floofloof@lemmy.ca
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          On the Amiga’s 40th birthday I brought the old Amiga 500 out of storage to the dinner table and we had cake. Just realized I should do the same with the Atari ST, for more cake. I think my family tolerates me because of the cake.

        • bufalo1973@europe.pub
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          3 days ago

          Then you will enjoy the news that Commodore was bought recently and they want to build new equipments, starting with a C64.

      • skisnow@lemmy.ca
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        2 days ago

        What is that Acorn? I don’t remember the BBC having an “Acorn Bus Extension”, and it looks too narrow to be a Master…

        (nm, I found it online: Acorn Atom. I’ve never seen one in real life.)

        • floofloof@lemmy.ca
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          2 days ago

          Yes, it was a nice little machine, the first computer I used at home. I shared it with some friends because our parents couldn’t afford it unless we pooled our money. Each of us would have it for a week then take it to the next kid’s house. In those days you had the option of buying it prebuilt or (cheaper) as a kit, and I still remember how excited I was when my dad and I came out of the electronics shop with a bag full of circuit boards, chips and keys that would magically become a computer when soldered together.

          The Acorn story is really amazing: a tiny hobbyist company that got a break when the BBC commissioned the BBC micro from them, that went on to invent the ARM chips that are in billions of phones and other devices now.

    • Onomatopoeia@lemmy.cafe
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      3 days ago

      Ooh, I had a serial mouse (9 pin) from Microsoft of all companies, in the 90’s.

      Damn good mouse.

    • partial_accumen@lemmy.world
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      Its on the side. You can kind of see it in your picture. I have a C64 within arms reach.

      Bonus points if you had a mouse to use with GEOS:

        • fartographer@lemmy.world
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          3 days ago

          Yeah, if you can keep them running, they’re surprisingly efficient. And they hardly ever jam. But all the printouts look like garbage and feel like you’re trying to interpret ancient runes. When we got our first inkjet printer at home, I suddenly struggled to read anything from the ol’ dot matrix.

    • LillyPip@lemmy.ca
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      3 days ago

      Check this out:

      This was why I got into programming.

      I still have the book:

      It’s so cool:

      Lemme know if you want to see more. I thought it’s awesome.

      • LillyPip@lemmy.ca
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        3 days ago

        I have to find my UHf dongle, and it looks like I was playing Star Strike the last time, but I will get this running. I have the manual, after all.

    • pinball_wizard@lemmy.zip
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      edit, actually, it might have been on the back…it’s been forever since I touched one

      It was along the right side. I remember it helped to sit a little bit to the right, or angle the keyboard a bit, when playing a two player game, so that the leftmost player’s joystick cord would reach.