What does dotted hole code mean?

Dotted hole code refers to a system of encoding information using a series of dots and holes, often found in physical forms like embossed cards or labels. Each dot or hole represents a specific piece of data, allowing for efficient data storage and retrieval. This method is commonly used in various applications, including ticketing and inventory systems, where quick scanning and identification are essential. The use of tactile elements also aids in accessibility for visually impaired users.