Former Microsoft engineer Dave Plummer has made his functioning 1980s PDP-11 minicomputer publicly accessible online, allowing visitors to observe its running processes in real-time through a web interface. This project stems from Plummer's long-standing fascination with multiuser systems and process monitoring tools, which dates back to his childhood experimentation with PDP-11 hardware at a university computing lab.

Plummer's machine is a PDP-11/83 model equipped with several upgrades, including a Mentec M11 CPU complex and four megabytes of RAM, running 2.11BSD, a Unix-derived operating system. The website refreshes the process list every five seconds with a cache to minimise demands on the vintage hardware; visitors can observe running processes such as inetd, ftpd, httpd, and sendmail, but cannot issue commands themselves. Plummer recently employed artificial intelligence to generate a C implementation of the "top" utility (approximately 400 lines of code) for his system, enabling the live process monitoring display.