Slots
Some desktop Macintosh computers have expansion slots for adding capabilities. For example, to connect an external SCSI drive to a Power Mac G5, you can install a SCSI card in an expansion slot and connect the drive to that card. Or to attach an additional monitor to a Macintosh, you could add a second video card. Macintosh desktop computers have two kinds of expansion slots: Peripheral Component Interface (PCI) and Accelerated Graphics Port (AGP). In contrast, PowerBooks use Personal Computer Memory Card International Association (PCMCIA) slots for expansion.
PCI
PCI expansion slots aren't just connectors tacked on to the logic board as an afterthought. They're actually an integral part of the logic board—in fact, PCI is the computer's ...
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