--- layout: page title: IBM PC XT (Model 5160, 256Kb, 10Mb Drive, Color Display) running Windows 1.01 permalink: /devices/pcx86/machine/5160/cga/256kb/win101/ redirect_from: - /devices/pc/machine/5160/cga/256kb/win101/ - /configs/pc/machines/5160/cga/256kb/win101/ - /configs/pc/machines/5160/cga/256kb/win101/machine.xml/ - /demos/pc/cga-win101/xt-cga-win101.xml/ - /demos/pc/cga-win101/ machines: - type: pcx86 id: ibm5160 --- IBM PC XT running Windows 1.01 --- [Microsoft Windows 1.01](/disks/pcx86/windows/1.01/), the first public version of Windows, was released on November 20, 1985. It is shown here running on an IBM PC XT (Model 5160) with a CGA Display. You can also run [Windows 1.01 with an EGA Display](/disks/pcx86/windows/1.01/). {% include machine.html id="ibm5160" %} The above simulation is configured for a clock speed of 4.77Mhz, with 256Kb of RAM and a CGA Display, using the original IBM PC Model 5160 ROM BIOS and CGA font ROM. Even though the CGA was a "Color Graphics Adapter," the only CGA mode that Windows supported was the 640x200 2-color mode, hence its black-and-white appearance. This PC XT configuration also includes a 10Mb hard disk with Windows 1.01 pre-installed. This particular configuration will NOT save any changes when your browser exits, since it has been pre-configured to always start Windows 1.01 in the same state. NOTE: The Windows 1.01 mouse pointer can be controlled with your mouse, but only when your mouse is within the "CGA Display" window. This is a restriction imposed by your web browser, not PCjs. For more control over this machine, try the [Control Panel](debugger/) configuration, featuring the built-in PCjs Debugger, with save/restore enabled.