Known as a Programmable Interrupt Controller, it is the interrupt controller chip used in a PC. It is superseded by the 82489DX chip. See IRQ and PIC.
"8259A." YourDictionary, n.d. Web. 12 October 2018. <http://www.yourdictionary.com/8259a>.
8259A. (n.d.). Retrieved October 12th, 2018, from http://www.yourdictionary.com/8259a
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