PCjs Machines

Welcome to PCjs, home of PCx86, the original IBM PC simulation that runs in your web browser. 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. 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.

Source: www.pcjs.org