Pretty much the question. I heard about Usenet a while back but never managed to wrap my head around it.

  • @cynar
    link
    English
    1111 months ago

    Modem is short for modulator/demodulator. It took a data stream and encoded it onto tones, multiple (audible) frequencies were used to increase data rates. You had to dial in to either a server, another computer, or an ISP. If you picked up the phone you would hear what sounded like white noise.

    I lost many a download, or ‘online’ game to my mother picking up the phone to make a phone call.

    • @[email protected]
      link
      fedilink
      411 months ago

      That’s very clear, thanks. I remember reading about the original phreakers, one guy had perfect pitch so he could just sing the tone to open a long distance line and then dial away. I think he got sued by one of the American phone companies for stealing.

      • @cynar
        link
        English
        511 months ago

        There are some amazing stories about the cat and mouse games regarding phone phreaking. The “captain crunch whistle” is great. All their attempts at security, beaten by a bit of audible brute force, via a cereal box toy.