PIIX

1. Alternatively referred to as Intel 82371FB (PIIX) and Intel 82371SB (PIIX3), PIIX is short for PCI IDE Xcelerator and is an Intel Southbridge multi-function integrated circuit for PCI devices implementing a PCI-to-ISA bridge function and an PCI IDE function, the PIIX3 implements a Universal Serial Bus host/hub function.

2. Slang for pics or pictures.

Also see: IDE, Motherboard definition, PCI, Southbridge, USB