Digital Logic

1.Which of the following best describes the NOR operation?

• An OR followed by a NOT

• A NOT followed by an OR

• An XOR followed by a NOT

• An AND followed by a NOT

2.The operand ________ yields true if and only if both of its operands are true.

• a. XOR

• b. OR

• c. AND

• d. NOT

3.The operation _________ yields true if either or both of its operands are true.

• a. NOT

• b. AND

• c. NAND

• d. OR

4.The unary operation _________ inverts the value of its operand.

• a. OR

• b. NOT

• c. NAND

• d. XOR

5.A _______ is an electronic circuit that produces an output signal that is a simple Boolean operation on its input signals.

• a. gate

• b. decoder

• c. counter

• d. flip-flop

For more than four variables an alternative approach is a tabular technique referred to as the _________ method.

• a. DeMorgan

• b. Quine-McCluskey

• c. Karnaugh map

• d. Boole-Shannon

________ is implemented with combinational circuits.

• a. Nano memory

• b. Random access memory

• c. Read only memory

• d. No memory

The ________ exists in one of two states and, in the absence of input, remains in that state.

• a. assert

• b. complex PLD

• c. decoder

• d. flip-flop

The ________ flip-flop has two inputs and all possible combinations of input values are valid.

• a. J-K

• b. D

• c. S-R

• d. clocked S-R

A _________ accepts and/or transfers information serially.

• a. S-R latch

• b. shift register

• c. FPGA

• d. parallel register