What is the AND gate ?

Explanation

### Step-by-Step Solution:

1. **Definition of AND Gate**:
The AND gate is a basic digital logic gate that implements logical conjunction. It outputs true (or high) only when all its inputs are true (or high).

2. **Symbol of AND Gate**:
The symbol for an AND gate resembles a "D" shape. It has two input lines and one output line. The inputs are typically labeled as A and B, while the output is labeled as Y.

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