Please be gentle to these old boxes, these are systems from the early 90ies, with 25 to max 200 MHz. You can surf the web, but nothing that uses https will work.

Connect to it with any modern webbrowser. No software installation required. You’ll reach out to real hardware, not some emulation!

What is it?

Old computers from the late 80ies to early 90ies, remote controllable via the Internet. Not an emulation, but the real hardware.

… but … why?

Why not? Others go climbing, and this was an fun excercise, too. A lot has changed in the last 30yrs in IT, but a lot hasn’t.

What to do with it?

Program these boxes, or write a message in Signum!, LaTeX or ClarisWorks.

Main focus is programming with …

Apple Macintosh Performa 475, 68040/25, 36 MB RAM, Mac OS 7.6.1

  • HyperCard - Bill Atkinson’s innovative development environment. Click to assign actions to buttons, link to new cards, search cards, create new cards. In modern terms it’s a web application development tool. You can use the scripting language HyperTalk, but you don’t have to. Early multimedia!
  • Think Pascal 4.5 - an excellent Pascal compiler with an even better debugger Lightsbug. Find in DATA/PASCAL a simple sample project
  • VIP-C (an ANSI-C interpreter!). Nearly all C systems are compilers. This is an interpreter. (a compiler can be attached, too).
  • There’s a small IRC client installed to chat with others on #rC3 (see below)

Usage hints

  • Mac OS uses click-to-pull menus: click the menu item and keep the mouse button down, drag to the desired menu entry, release
  • Switching between running applications:
    • either Alt-Tab
    • or top-right menu item to show all running applications
  • The application starter “DragThing” is located at the bottom of the screen

Siemens PCD-2L, 286/12, 4 MB RAM, MS-DOS

General usage hints/tricks (shortcuts, display size)

  • If the stream-display is too small for you: on the top right of the browser viewport, click the monitor icon, there’s a slider for the screen size, you can choose between 20% and 200%
  • If you want to use certain shortcuts in the guest/target system, that your local/own system also uses, you’d need to start your browser in „application mode“:

Making all target system shortcuts usable on Linux using Chromium/Chrome

Restart your desired web browser in application mode for HOTA:

$ `which chromium 2>/dev/null || which chrome 2>/dev/null || which google-chrome` -- app=""

Making all target system shortcuts usable on modern macOS using Terminal

Restart your desired web browser in application mode for HOTA:

$ /Applications/Google\\ Chrome --app=""

Making all target system shortcuts usable on Windows via cmd.exe

Restart your desired web browser in application mode for HOTA:

C:\> start chrome --app=""


Contact Götz …

  • via IRC: channel #rC3 on
  • via Threema: ID: M2YPXM8V to be invited to the Hack-over-the-air group
  • in rC3 world: „GTZ“ (may be cumbersome for real support)
chaostalk/rc3-37c3-hota.txt · Zuletzt geändert: 2020/12/30 07:46 von goetz