Compatibility card

A compatibility card is an expansion card for computers that allows it to have hardware emulation with another device.

While compatibility cards date back at least to the Apple II family, the majority of them were made for 16-bit computers, often to maintain compatibility with the IBM PC.

The most popular of these were for Macintosh systems that allowed them to emulate Windows PCs via NuBus or PCI; Apple had released several such cards themselves.

This computer hardware article is a stub.

You can help Wikipedia by expanding it.

The Z-80 SoftCard , an early CP/M compatibility card for the Apple II family
Apple's first DOS Compatibility Card for the Centris/Quadra 610 with an Intel i486SX processor
An open box for the Risc PC x86 card