- PCx86, an x86-based emulator of the IBM PC and PC-compatibles
- PC8080, an 8080 machine emulator (e.g., Space Invaders and the VT100 Terminal)
- C1Pjs, an emulation of the 6502-based Ohio Scientific Challenger 1P
- PDPjs, a set of machine emulation modules supporting the DEC PDP-10 and PDP-11
PCx86 has steadily evolved to support more classic x86-based machines, including the IBM PC XT, the 80286-based IBM PC AT, and the 80386-based COMPAQ DeskPro 386. PCx86 fully supports the original machine ROMs, video cards, etc, and all machines run at their original speeds.
The goals of the PCjs Project are to create fast, full-featured simulations of classic computer hardware, help people understand how these early machines worked, make it easy to experiment with different machine configurations, and provide a platform for running and analyzing old computer software.
Some pre-configured machines are shown below, ready to run BASIC, DOS, Windows, OS/2, and other assorted software.
There are many more PCx86 Demos, including an IBM PC with Dual Displays demonstrating early multi-monitor support, and multiple IBM PC XT machines running side-by-side with CGA Displays and EGA Displays.
Below is the OSI Challenger C1P, another simulation in the PCjs Project. It simulates Ohio Scientific’s 6502-based microcomputer, released in 1978. More details about this simulation and the original machine are available in the C1Pjs Documentation.
The PCjs Project is now an open-source project on GitHub. All published portions are free for redistribution and/or modification under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
You are required to include the following copyright notice, with a link to pcjs.org:
in every source code file of every copy or modified version of this work, and to display that notice on every web page or computer that runs any version of this software.
See LICENSE for details.