Programmable Interval Timer. A timer present in all PCs with a frequency of 1.193MHz (2^32/3600) with 3 outputs, channel 0 causing IRQ 0 (int 8), channel 1 for memory refresh and channel 2 for the PC Speaker.
The Game Dictionary™ is a trademark of GameDev.net LLC. No duplication, reproduction, or transmission of the Game Dictionary or its content is allowed without the consent of GameDev.net LLC.