Which of the following special I/O modules would be used to operate a seven-segment LED Display?
A)Encoder-counter module.
B)BCD-output module.
C)Stepper-motor module.
D)High-speed counter module.

Question

Quizplus · Accepted Answer

A BCD-output module would be used to operate a seven-segment LED display because the seven-segment display requires BCD (binary coded decimal) input to display numbers. The BCD-output module provides BCD output to drive the segments of the display. The other options listed are not appropriate for operating a seven-segment LED display.

Which of the Following Special I/O Modules Would Be Used