HyperTerminal was the universal translator for RS-232. It was ugly, basic, and absolutely mission-critical.
Here’s an interesting, slightly nostalgic, and technical write-up on . windows 10 hyperterminal
If you just need to test if a port is open or send a few commands, you might not need to download anything. HyperTerminal was the universal translator for RS-232
Today, if you want to talk to a serial device on Windows 10, you roll up your sleeves and download PuTTY or Tera Term. It's not hard. But every time you do, you’ll feel a tiny pang of loss for that blue-and-gray icon, sitting patiently in Accessories > Communications, waiting for you to scream a modem into life. and absolutely mission-critical. Here’s an interesting