# Basic Logic Gates

*What is a logic gate?*

*Logic gate purpose*

*What is a logic gate simple definition?*

*The circle in the logic symbol of a not gate is known as what?*

**“inversion bubble”**and is used in NOT, NAND, and NOR symbols at their output to represent the logical operation of the NOT function. Boolean expression of NOT gate is X=A-.

*what does the circle mean in logic gates?*

*What is a NOT gate also known as?*

*What is the name of the logic symbol?*

**1. Material implications**

**Symbol**

The material implication symbol is **=> –>**

**Unicode Value**

- U+21D2
- U+2192
- U+2283

**2. Material equivalence **

**Symbol**

The material equivalence symbol is **<=> <->**

**Unicode Value**

Unicode values are:

- U+21D4
- U+2261
- U+2194

#### 3. Negation

**Symbol**

**~ !**

**Unicode Value**

- U+00AC
- U+02DC
- U+0021

#### 4. Domain of discourse

**Unicode Value**

- U+1D53B

*What does a circle symbol symbolize?*

*What is the circle of life symbol?*

*What are the 7 types of symbols in the logic gates?*

- Pictogram
- Ideogram
- Icon
- Rebus
- Phonogram
- Typogram
- Logo (trademark)

*What is the principle of logic gates?*

**transistor**is on, or open, then an electric current can flow through. And when it’s off, then no current flows. When you string a bunch of these transistors together, then you get what’s called a logic gate, which lets you add, subtract, multiply and divide binary numbers in any way imaginable.

*Which logic gate is most important?*

*What are the 4 types of logic?*

- Informal logic
- Formal logic
- Symbolic logic
- Mathematical logic

*Who made the first logic gate?*

Walther Bothe, the inventor of the coincidence circuit, got part of the 1954 Nobel prize in physics, for the first modern electronic AND gate in 1924. Konrad Zuse designed and built electromechanical logic gates for his computer Z1 (from 1935 to 1938).

*Who invented logic gates?*

Mathematician George Boole died 150 years ago. Boolean logic, the system he invited, is still used in Morden computer programing, writes Chris Stokel-Walker.

*How is the logic gate used in everyday life?*

Logic, on the other hand, may be defined as the science that evaluates arguments. All of us encounter arguments in our everyday life. We read arguments in books, magazines, and newspapers, hear them on television, and formulate them when communicating with friends, parents, juniors, and seniors colleagues.