Use the original IBM PC (and play Adventure) in your browser

Enjoy the original IBM 5150 PC as implemented in javascript, with various boot images to toy around with.

It was added to the JavaScript Machines project in Fall 2012, and is now part of the PCjs Project on GitHub.…
All the simulations are written entirely in JavaScript. No Flash, Java or other plugins are required. Supported browsers include modern versions of Chrome, Safari, Firefox, Internet Explorer (v9.0 and up), Edge, and assorted mobile browsers.

Warning: beeps loudly upon booting. [via r/internetisbeautiful]

Previously: Windows 93.