Digital Circuits and Logic Gates Quiz

In Boolean algebra, AND operations are performed before OR operations unless parentheses dictate otherwise, similar to ordinary algebra.

A logic operation that returns TRUE only if ALL inputs are TRUE.

A logic operation that returns TRUE if AT LEAST ONE input is TRUE.

In Boolean expressions, the AND operation has higher precedence than OR unless parentheses are used

A combination of Boolean variables, operators (AND, OR, NOT), and parentheses representing a logical condition.

Parentheses in Boolean expressions ensure the operations are performed in the order stated within the parentheses.

An output is determined by evaluating the specified Boolean expression, considering values of the inputs in the sequence defined by the order rules.

Logic circuits that use AND and OR gates in a specific order to generate an output based on the values of input.

A logic gate that produces a LOW output only when all inputs are LOW. It's like an OR gate followed by an inverter.

The output of a NOR gate is the inverse of an OR gate.

A logic gate that produces a HIGH output only when all inputs are LOW. It is like an AND gate with an inverter at its output.

The symbol for a NAND gate is identical to an AND gate, but has a small circle on its output.

An electronic circuit that performs a logical operation on one or more binary inputs. The operation results in a single binary output.

An input signal that can only have two possible states, either high or low (represented as 1 or 0).

An electronic circuit that operates on discrete signals (binary inputs and outputs)

A table that lists all possible input combinations and their corresponding output values for a logical operation.

The starting state of a latch or flip-flop (Q = 0 or Q = 1) is determined by factors like propagation delays and external loading.

To ensure proper circuit operation, latches/flip-flops are sometimes forced into a specific starting state by momentarily activating the Set or Reset input at the start of the circuit's operation.

The phenomenon of a mechanical switch rapidly making and breaking contact multiple times when moved to a new position.

Preventing the effects of contact bounce from affecting a circuit's output by using techniques like NAND latches.

Digital systems where the times at which outputs can change states are controlled by a clock signal.

A basic latch circuit that can be built using either two NAND gates or two NOR gates, storing a single bit of information.

A periodic signal (usually a square wave or rectangular pulse train) that defines the timing of events in synchronous digital systems.

Digital systems where outputs can change state anytime an input changes, with no central clock signal to control timing.

The state of an S-R flip-flop where the Q output is logic 1 (high) and the Q' output is logic 0 (low).

Synchronous systems rely on a clock signal to determine when outputs can change, while asynchronous systems have no centralized timing.

The state of an S-R flip-flop where the Q output is logic 0 (low) and the Q' output is logic 1 (high).

The ability of an S-R flip-flop to maintain its current state even after the input signals that caused it are removed.

To set a NOR gate S-R latch, a low pulse is applied to the 'Set' input while the 'Clear' input is high.

To clear a NOR gate S-R latch, a high pulse is applied to the 'Reset' input while the 'Set' input is low.

The process of setting or resetting the S-R flip-flop based on the input signals applied.

S-R flip-flops are used in various applications like computer memory, counters, and timing circuits.

The moment when the clock signal changes from a low (0) to a high (1) value.

The moment when the clock signal changes from a high (1) to a low (0) value.

A flip-flop that operates and changes states when the clock signal is at a specific logic level (either HIGH or LOW).

A flip-flop input that responds when the clock signal is HIGH (logic 1).

A flip-flop input that responds when the clock signal is LOW (logic 0).

A flip-flop that changes states only on the transition (either rising or falling edge) of the clock signal.

A circuit where all operations are synchronized to a common clock signal, making them predictable and easier to debug.

A type of flip-flop that is similar to an SR flip-flop but has a different behavior when both inputs are high. In this state, the flip-flop toggles to its opposite state with each clock pulse.

The mode of operation of a JK flip-flop when both J and K inputs are high (J = K = 1). In this mode, the flip-flop changes states for each positive transition of the clock signal.

In a JK flip-flop, this input combination causes the flip-flop to toggle to its opposite state on the next positive clock edge.

A type of flip-flop where the state changes are synchronized with the edge of a clock pulse. The J and K inputs control the state change but only when the clock signal makes a positive transition.

The rising edge of the clock signal, going from low to high, is what triggers the state change in a clocked JK flip-flop.

The state of a flip-flop is defined by its output Q. It can either be high (1) or low (0), representing the stored information

They determine the next state of the flip-flop, but only when the clock signal transitions positively. They don't affect the state independently.

It changes state only on the positive transition of the clock pulse, and its new state is determined by the values of the J and K inputs at that moment.