PDP-11 Emulator

A PDP-11/70 emulator, compiled to WebAssembly, running entirely in this browser tab. Disk images are streamed over HTTP range requests, so nothing is downloaded up front. Each entry below boots a tested machine configuration for that operating system.

Examples

Adventure

Colossal Cave Adventure, bundled with UNIX Seventh Edition.

Dungeon

The Zork-derived dungeon crawl, also bundled with UNIX V7.

Systems

UNIX

Research Unix, from 4th Edition through Version 7.

RT-11

DEC's single-job real-time operating system.

BSD

Berkeley Software Distribution, 2.9 and 2.11.

RSTS/E

DEC's timesharing operating system for the PDP-11/70.

RSX-11M

DEC's real-time multiuser operating system.

ULTRIX-11

DEC's PDP-11 port of 2.11BSD-derived UNIX.

XXDP+

DEC's field-service diagnostic monitor.