17 Use Only 2-Input OR Gates to create each of the following, label the Inputs, and write a Boolean Expression for the Output a. 3-Input OR Gate b. 4-Input OR Gate 18. Use Only 2-Input OR and/or NOR Gates to create each of the following, label the Inputs, and write a Boolean Expression for the Output a. 3-Input NOR Gate b. Inverter 19. ( Use Only 2-Input AND and/or NAND Gates to create each of the following, label the Inputs, and write a Boolean Expression for the Output a. 4-Input NAND Gate b. Inverter

Which of the following statements is NOT correct about logic gates? Select one or more: The output of an XOR gate is 1 (HIGH) if the inputs complement each other If all inputs to an AND gate are 1 (HIGH), the output is 0 (LOW) A NOT gate can be used to produce the 1's complement of a binary number A NOR gate can be considered as an OR gate followed by a NOT gate

= 0, Design a sequential circuit with two D flip-flops A and B, and one input x_in. When x_in the state of the circuit remains the same. When x in = 1, the circuit goes through the state transitions from 00 to 01, to 11, to 10, back to 00, and repeats.

1. An ocean front restaurant has purchased several automatic windows, which are designed to close whenever they receive a logic'1'. The restaurant wants the windows to close when it's either cold(c-1) or both windy(w=1) and raining(r=1). Create a simple digital circuit which determines when the windows should be closed using only two gates. Suppose a technician hired by the restaurant designed the following Boolean expression: (r'+c)'w+c . Using Boolean algebra, prove that both expressions implement the same function("are equivalent"). . Which expression would you use in the final design? Why? 2.