## What is the most complex logic gate?

We finally arrive at the last, and most complex logic gate; if you understood everything up to this point then you should have no trouble learning about this logic gate. The XNOR gate uses two logic gates, the NOT gate and the NOR gate.

**What is the most universally used logic gate?**

The AND and NAND gates are possibly the most widely used form of logic gate that are used. Of the two the NAND gate is the most widely seen. OR / NOR : OR gates and NOR gates are another form of logic gate that form one of the basic building blocks of digital technology.

**What is high and low in Gates?**

Exclusive-OR gates output a “high” (1) logic level if the inputs are at different logic levels, either 0 and 1 or 1 and 0. Conversely, they output a “low” (0) logic level if the inputs are at the same logic levels.

### What are common logic gates?

Basic logic gates. There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR. AND | OR | XOR | NOT | NAND | NOR | XNOR. The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator.

**What is De Morgan’s theorem?**

De Morgan’s Theorem, T12, is a particularly powerful tool in digital design. The theorem explains that the complement of the product of all the terms is equal to the sum of the complement of each term. Likewise, the complement of the sum of all the terms is equal to the product of the complement of each term.

**WHAT IS AND OR invert gate?**

AND-OR-invert (AOI) logic and AOI gates are two-level compound (or complex) logic functions constructed from the combination of one or more AND gates followed by a NOR gate.

#### What is Anand gate?

A NAND Gate is a logical gate which is the opposite of an AND logic gate. It is a combination of AND and NOT gates and is a commonly used logic gate. It is considered as a “universal” gate in Boolean algebra as it is capable of producing all other logic gates.

**Which gate is known as inverter?**

The NOT gate is also known as an inverter. It has only one input and one output. The out put of an inverter is always opposite to the input i.e. if input is 1 (high), the output is 0 (low) and vice versa.

**What is De Morgan’s Law in logic gates?**

DeMorgan’s Theorems describe the equivalence between gates with inverted inputs and gates with inverted outputs. Simply put, a NAND gate is equivalent to a Negative-OR gate, and a NOR gate is equivalent to a Negative-AND gate.

## What is De Morgan’s theorem formula?

DeMorgan’s First theorem proves that when two (or more) input variables are AND’ed and negated, they are equivalent to the OR of the complements of the individual variables. Thus the equivalent of the NAND function will be a negative-OR function, proving that A.B = A+B.

**Which is the fastest gate?**

Which gate is faster? Explanation: NOR gate is faster. NAND is more complex than NOR and thus NOR is faster and efficient.

**What is TTL and ECL logic?**

TTL (Transistor Transistor Logic) IC technology uses bipolar transistor as principal circuit element. CMOS (Complementary Metal Oxide Semiconductor) IC technology uses FET as principal circuit element. ECL (Emitter Coupled Logic) IC technology uses bipolar transistors configured as differential amplifier.

### Which is best TTL or CMOS?

Overall CMOS is the clear winner when it comes to utility. The TTL logic family uses bipolar transistors to perform logic functions and CMOS uses field effect transistors. CMOS generally consumes much less power, despite being more sensitive than TTL.