51. The device shown here is most likely a ________.

(a) comparator

(b) multiplexer

(c) demultiplexer

(d) parity generator

52. The device shown here is most likely a ________.

(a) comparator

(b) multiplexer

(c) demultiplexer

(d) parity generator

53. For the device shown here, assume the D input is LOW, both S inputs are HIGH, and the input is HIGH. What is the status of the outputs?

(a) All are HIGH.

(b) All are LOW.

(c) All but are LOW.

(d) All but are HIGH.

54. A circuit that can convert one of ten numerical keys pressed on a keyboard to BCD is a ________.

(a) priority encoder

(b) decoder

(c) multiplexer

(d) demultiplexer

55. What is the indication of a short on the input of a load gate?

(a) Only the output of the defective gate is affected.

(b) There is a signal loss to all gates on the node.

(c) The affected node will be stuck in the LOW state.

(d) There is a signal loss to all gates on the node, and the affected node will be stuck in the LOW state.

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