Not Only 30 Programs for the Sinclair ZX81

Try the programs out in your browser by clicking on a name below.
Or download a zip of all the P files to try in an emulator or on a real 1K ZX81.

Download !exclusive! The Dude 3.6 For Windows -

The Dude 3.6 is a legendary network monitoring tool from MikroTik, beloved for its simplicity, speed, and powerful visual mapping. While newer versions have transitioned to a client-server model tied to RouterOS, many administrators still seek because it is the last version that can run as a standalone monitoring server directly on a Windows PC. Why Choose The Dude 3.6?

Uses intuitive color-coding (green for up, red for down, amber for partial failure) to give an instant overview of network health. Download and Installation Guide download the dude 3.6 for windows

You can configure alerts via pop-ups, emails, or even system beeps when a device goes down. The Dude 3

Unlike version 6.x, which requires a MikroTik router or a virtual machine to host the server, version 3.6 installs the server and client together on your Windows machine. Uses intuitive color-coding (green for up, red for

The 3.6 release is often considered the "gold standard" for small-to-medium network environments due to several standout features:

Note that there is no DRAUGHTS program since I couldn't get it to work.

This website was created by Tom White (source on GitHub).
The emulator is subject to the GPL license, version 2.
The programs are copyright (c) 1981 by Beam Software.