2. Interrupt and polling are useful when interfacing I/O devices that provide or require data at...

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2. Interrupt and polling are useful when interfacing I/O devices that provide or require data at relatively low data transfer rates. a) Differentiate between the interrupt and polling. (4 marks) b) List TWO (2) ways to expand the interrupt structure of the 8086 and discuss how each of these structures determine the interrupt priority. (8 marks) c) Describe the operation of the 8086 microprocessors after an interrupt is accepted. (8 marks) 2. Interrupt and polling are useful when interfacing I/O devices that provide or require data at relatively low data transfer rates. a) Differentiate between the interrupt and polling. (4 marks) b) List TWO (2) ways to expand the interrupt structure of the 8086 and discuss how each of these structures determine the interrupt priority. (8 marks) c) Describe the operation of the 8086 microprocessors after an interrupt is accepted. (8 marks)

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a Differentiating between interrupt and polling Interrupt Interrupt is a mechanism used in computer systems to handle events or requests from external devices or software When an interrupt occurs the ... View the full answer