Explain how the Braille system is used to help visually challenged people?

Explanation

### Step-by-Step Solution:

1. **Introduction to Braille System**:
The Braille system is a tactile writing system used by visually challenged individuals to read and write. It allows them to access written information through touch.

2. **Structure of Braille Characters**:
Each Braille character is made up of a cell that consists of six dot positions arranged in two columns and three rows. This arrangement provides a grid-like structure that can be felt by touch.

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