The remaining memory space can be used by external devices and memory modules connected to the expansion bus.

Others treat PCI and similar systems as a third category, the expansion bus.

The expansion bus supported 16-bit-wide data and 20-bit-wide address capability.

He designed a new custom chip, called Buster, to handle the expansion bus.

The device connected to the expansion bus on the ZX Spectrum.

The PEB also carried an analog sound input on the expansion bus.

He pointed out the memory slots, the expansion bus, and various other features.

MaxBus was based on the '123's expansion bus.

The internal expansion buses should also be top-of-the-line, but with less capacity than the Power Mac.

The hardware capabilities of personal computers can sometimes be extended by the addition of expansion cards connected via an expansion bus.