In this video, i have explained Programmable Interrupt Controller 8259A by following outlines: 0. Programmable Interrupt Controller 8259A 1. Basics of Programmable Interrupt Controller 8259A 2. Features of Programmable Interrupt Controller 8259A 3. Block Diagram of Programmable Interrupt Controller 8259A 4. Working of Programmable Interrupt Controller 8259A 5. Operation of Programmable Interrupt Controller 8259A 6. Significance of Programmable Interrupt Controller 8259A For free materials of different engineering subjects use my android application named Engineering Funda with following link: https://play.google.com/store/apps/details?id=com.viaviapp.EF Above Android application of Engineering Funda provides following services: 1. Free Materials (GATE exam, Class Notes, Interview questions) 2. Technical Forum 3. Technical discussion 4. Inquiry For more details and inquiry on above topic visit website of Engineering Funda with given link: http://www.engineeringfunda.co.in Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Microprocessor and Interfacing 8085. #ProgrammableInterruptController8259A, #FeaturesofProgrammableInterruptController8259A, #BlockDiagramofProgrammableInterruptController8259A, #WorkingofProgrammableInterruptController8259A, #MicroprocessorandInterfacing