The "old" type of cards are actually called "PC-Card" these days, and have a specific form factor, meaning the size of the slot, the connector etc. (Actually there are a couple of different thicknesses defined.)Surreal wrote:What's the difference between an express card and pcmcia?
The PC-Card cards are internally of two different forms. The older one is PCMCIA which uses the old ISA bus in the computer. The new one is called CardBus and uses the PCI bus to talk to the computer.
Then there's the new kid on the block, the Express Card, which is smaller and with a smaller connector and generally incompatible with the older slots. I think it uses PCI Express and maybe optionally USB internally.
Technical enough for you?