Which circuit is bistable?

What is the function of a decade counter?

- It produces one output pulse for every 10 input pulses
- It decodes a decimal number for display on a seven-segment LED display
- It produces 10 output pulses for every input pulse
- It decodes a binary number for display on a seven-segment LED display

Which of the following can divide the frequency of a pulse train by 2?

How many flip-flops are required to divide a signal frequency by 4?

Which of the following is a circuit that continuously alternates between two states without an external clock?

What is a characteristic of a monostable multivibrator?

- It switches momentarily to the opposite binary state and then returns to its original state after a set time
- It produces a continuous square wave oscillating between 1 and 0
- It stores one bit of data in either a 0 or 1 state
- It maintains a constant output voltage, regardless of variations in the input voltage

What logical operation does a NAND gate perform?

- It produces logic 0 at its output only when all inputs are logic 0
- It produces logic 1 at its output only when all inputs are logic 1
- It produces logic 0 at its output if some but not all inputs are logic 1
- It produces logic 0 at its output only when all inputs are logic 1

What logical operation does an OR gate perform?

- It produces logic 1 at its output if any or all inputs are logic 1
- It produces logic 0 at its output if all inputs are logic 1
- It only produces logic 0 at its output when all inputs are logic 1
- It produces logic 1 at its output if all inputs are logic 0

What logical operation is performed by an exclusive NOR gate?

- It produces logic 0 at its output only if all inputs are logic 0
- It produces logic 1 at its output only if all inputs are logic 1
- It produces logic 0 at its output if only one input is logic 1
- It produces logic 1 at its output if only one input is logic 1

What is a truth table?

- A table of logic symbols that indicate the high logic states of an op-amp
- A diagram showing logic states when the digital device output is true
- A list of inputs and corresponding outputs for a digital device
- A table of logic symbols that indicate the logic states of an op-amp

What type of logic defines "1" as a high voltage?