--- layout: page permalink: / machines: - type: pcx86 id: ibm5150 name: "IBM PC (Model 5150) with Monochrome Display" config: /devices/pcx86/machine/5150/mda/64kb/machine.xml - type: c1p id: demoC1P config: /devices/c1p/machine/8kb/large/machine.xml --- Welcome to PCjs, home of [PCx86](/docs/pcx86/), the original IBM PC simulation that runs in your web browser. It is one of several JavaScript Machines in the [PCjs Project](https://github.com/jeffpar/pcjs), an open-source project that includes: * [PCx86](/docs/pcx86/), an x86-based IBM PC and PC-compatible emulator * [PC8080](/modules/pc8080/), an 8080 machine emulator (e.g., [Space Invaders](/devices/pc8080/machine/invaders/), [VT100 Terminal](/devices/pc8080/machine/vt100/)) * [C1Pjs](/docs/c1pjs/), an emulation of the 6502-based [Ohio Scientific Challenger 1P](/devices/c1p/) * [PDPjs](/modules/pdp11/), a PDP-11 emulator currently in development (e.g., [PDP-11/20](/devices/pdp11/machine/1120/), [PDP-11/45](/devices/pdp11/machine/1145/), [PDP-11/70](/devices/pdp11/machine/1170/)) All PCjs machine simulations are written entirely in [JavaScript](/modules/). 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. {% include machine.html id="ibm5150" %} The [JavaScript Machine](/devices/pcx86/machine/5150/mda/64kb/) above uses [PCx86](/docs/pcx86/) configured with an Intel 8088 running at 4.77Mhz, with 64Kb of RAM and an IBM Monochrome Display Adapter. For more control, there are also [Control Panel](/devices/pcx86/machine/5150/mda/64kb/debugger/) and [Soft Keyboard](/devices/pcx86/machine/5150/mda/64kb/softkbd/) configurations, featuring the built-in PCx86 Debugger. For even greater control, build your own PC. The [PCx86 Documentation](/docs/pcx86/) will help you get started. 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](/docs/about/) 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. Demos --- Some pre-configured machines are shown below, ready to run BASIC, DOS, Windows, OS/2, and other assorted software. {% include screenshot.html src="/apps/pcx86/1981/visicalc/thumbnail.jpg" width="200" height="120" title="IBM PC running VisiCalc" link="/apps/pcx86/1981/visicalc/" %} {% include screenshot.html src="/devices/pcx86/machine/5150/cga/64kb/donkey/thumbnail.jpg" width="200" height="120" title="IBM PC running DONKEY.BAS" link="/devices/pcx86/machine/5150/cga/64kb/donkey/" %} {% include screenshot.html src="/disks/pcx86/os2/ibm/1.0/thumbnail.jpg" width="200" height="120" title="IBM PC AT w/EGA, OS/2 1.0" link="/disks/pcx86/os2/ibm/1.0/" %} {% include screenshot.html src="/devices/pcx86/machine/5160/cga/256kb/win101/thumbnail.jpg" width="200" height="120" title="IBM PC XT w/CGA, Windows 1.01" link="/devices/pcx86/machine/5160/cga/256kb/win101/" %} {% include screenshot.html src="/disks/pcx86/windows/1.01/thumbnail.jpg" width="200" height="120" title="IBM PC XT w/EGA, Windows 1.01" link="/disks/pcx86/windows/1.01/" %} {% include screenshot.html src="/disks/pcx86/windows/2.0x/thumbnail.jpg" width="200" height="120" title="COMPAQ DeskPro 386, Windows/386 2.01" link="/disks/pcx86/windows/2.0x/" %} {% include screenshot.html src="/disks/pcx86/windows/3.00/thumbnail.jpg" width="200" height="120" title="IBM PC AT w/EGA, Windows 3.00" link="/disks/pcx86/windows/3.00/" %} {% include screenshot.html src="/disks/pcx86/windows/3.10/thumbnail.jpg" width="200" height="120" title="IBM PC AT w/VGA, Windows 3.10" link="/disks/pcx86/windows/3.10/" %} {% include screenshot.html src="/disks/pcx86/windows/win95/4.00.950/thumbnail.jpg" width="200" height="120" title="COMPAQ DeskPro 386, Windows 95" link="/disks/pcx86/windows/win95/4.00.950/" %} {% include screenshot.html src="/disks/pcx86/cpm/1.1b/thumbnail.jpg" width="200" height="120" title="IBM PC w/MDA, CP/M-86" link="/disks/pcx86/cpm/1.1b/" %} {% include screenshot.html src="/disks/pcx86/games/microsoft/adventure/thumbnail.jpg" width="200" height="120" title="IBM PC w/MDA, Microsoft Adventure" link="/disks/pcx86/games/microsoft/adventure/" %} {% include screenshot.html src="/disks/pcx86/games/infocom/zork1/thumbnail.jpg" width="200" height="120" title="IBM PC w/CGA, Zork I" link="/disks/pcx86/games/infocom/zork1/" %} There are many more [PCx86 Demos](/devices/pcx86/machine/#ready-to-run-app-demos), including an [IBM PC with Dual Displays](/devices/pcx86/machine/5150/dual/64kb/) demonstrating early multi-monitor support, and multiple IBM PC XT machines running side-by-side with [CGA Displays](/devices/pcx86/machine/5160/cga/256kb/array/) and [EGA Displays](/devices/pcx86/machine/5160/ega/640kb/array/). C1Pjs --- Below is the [OSI Challenger C1P](/docs/c1pjs/), 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](/docs/c1pjs/). {% include machine.html id="demoC1P" %} License --- The [PCjs Project](https://github.com/jeffpar/pcjs) is now an open-source project on [GitHub](http://github.com/). All published portions are free for redistribution and/or modification under the terms of the [GNU General Public License](/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 [{{ site.pcjs.domain }}]({{ site.url }}/): > [PCjs]({{ site.url }}/) © 2012-2017 by [Jeff Parsons](mailto:Jeff@pcjs.org) ([@jeffpar](http://twitter.com/jeffpar)) 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](/LICENSE) for details. More Information --- Learn more about the [PCjs Project](/docs/about/) and [PCx86](/docs/about/pcx86/). To create your own PCx86 machines, see the [PCx86 Documentation](/docs/pcx86/) for details. If you have questions or run into any problems, feel free to [tweet](http://twitter.com/jeffpar) or [email](mailto:Jeff@pcjs.org).