(1) (Programmable Interrupt Controller) An Intel 8259A chip that controls interrupts. Starting with the 286-based AT, there are two PICs in a PC, providing a total of 15 usable IRQs. The PIC has been superseded by an Advanced Programmable Interrupt Controller, or 82489DX chip, that is enhanced for multiprocessing. See IRQ.|
(2) (Port Interface Card) An expansion board that plugs into a router to add network interfaces. PICs may have only one port or multiple ports of the same type.
(3) (PICture) A file extension used for graphics formats. Lotus PIC is a vector format for 1-2-3 charts and graphs. Videoshow PIC is a vector format that is a subset of the NAPLPS standard.