But what does it take to get started with ISA or PCI expansion cards today? From top to bottom: 8-bit XT bus, 16-bit AT/ISA, 32-bit EISA. An important thing to note about ISA and the original PC ...

because many 16-bit ISA cards also supported the original 8-bit slots from the earliest PCs. The Arduino is fast enough to support the ISA bus speed, but the card also needs the PC’s clock line ...

This board, when used with a custom BIOS like the XT-IDE Universal BIOS, allows the use of modern 16-bit IDE devices on the 8-bit ISA bus. More info on the Glitch Works project to provide boards, kits ...