4. Position markers: They inform the scanner where the edges of the QR code are located.

5. Alignment marker: This is a reference point of the code that makes sure everything is lined up accurately. If the QR code is bigger, there can be multiple reference points.

6. Timing patterns: This stripe of black and white modules shows the positioning of rows and columns and helps the scanner to determine how large the data matrix is.

7. Version information: This section denotes the version number, meaning the more modules there are, the higher the version. There are 40 different versions of a QR code and the most common ones are 1 to 7.

8. Format information: This part of the QR code stores information about error tolerance and data masking.

9. Error correction: This lets the code still be read if there’s any damage to display its information.

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