Which of the following is necessary for the parallel input-output port?(a) inductor(b) pull-up resistor(c) push-up resistor(d) capacitorThis question was addressed to me in an online quiz.This key question is from Parallel Ports in portion Basic Peripherals of Embedded Systems

Which of the following is necessary for the parallel input-output port

1.	Which of the following is necessary for the parallel input-output port?(a) inductor(b) pull-up resistor(c) push-up resistor(d) capacitorThis question was addressed to me in an online quiz.This key question is from Parallel Ports in portion Basic Peripherals of Embedded Systems
Answer» Right answer is (b) pull-up RESISTOR To elaborate: The I/O PORT needs an external pull-up resistor. In some devices, it offers INTERNALLY. If it is not provided, it can cause INCORRECT data on reading the port and it prevents the port from turning off an external DEVICE.

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Which of the following is necessary for the parallel input-output port?(a) inductor(b) pull-up resistor(c) push-up resistor(d) capacitorThis question was addressed to me in an online quiz.This key question is from Parallel Ports in portion Basic Peripherals of Embedded Systems

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