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What is a Barcode?

A barcode is an optical, machine-readable symbol used to represent data. Traditional barcodes are one-dimensional and consist of parallel lines of varying widths and spacing. They were first introduced in the 1950s, primarily for use in retail and warehousing to automate processes and track goods. Barcodes can contain information about a product, such as its number, price, and manufacturer.

How to Read a Barcode?

Reading a barcode is very simple thanks to various available technologies. A barcode can be read using specialized scanners, mobile applications, or our online application if you don't want to install anything or need to read a code using a computer.

Reading a barcode is very easy:

  1. Open the barcode reader on this webpage.
  2. Click on "Read image with webcam."
  3. Allow camera access to read the barcode on your computer or phone.
  4. Place the barcode in front of the camera so it is fully visible.
  5. And you're done!

If you have the barcode as an image on your computer or phone, you can just as easily read it using the "Upload image" button.

Uses of Barcodes

Barcodes have a wide range of applications across various industries:

  • Retail: Scanning products at the checkout for quick and accurate transaction processing.
  • Warehousing and Logistics: Tracking inventory, managing warehouses, and logistics processes.
  • Healthcare: Identifying patients, medications, and medical supplies.
  • Manufacturing: Tracking production, quality control, and managing material inventories.

Advantages and Disadvantages of Barcodes

Advantages:

  • Speed and Efficiency: Enable fast scanning and data processing.
  • Accuracy: Reduce the risk of errors associated with manual data entry.
  • Cost-Effectiveness: Low implementation and maintenance costs.

Disadvantages:

  • Limited Data Capacity: One-dimensional barcodes can only store a limited amount of information.
  • Susceptibility to Damage: Damaged or poorly printed barcodes can be difficult to read.
  • Dependence on Technology: Require specialized scanners or applications to read.

Features

Barcodes are designed to be readable from various angles, but for optimal readability, it is best if they are scanned directly. Modern scanners can read codes even in low light conditions and from various materials.

Data Capacity

The data capacity of a barcode depends on its type. Standard one-dimensional barcodes (e.g., UPC or EAN) can contain up to 20 characters, which is sufficient for basic identification information. For more complex applications, two-dimensional codes, such as QR codes, are used, which can store thousands of characters.

History

The barcode was first patented in 1952 by Norman Woodland and Bernard Silver. Their original design used bullseye symbols (concentric circles), which were later replaced by more modern linear patterns. The first commercial use of a barcode occurred in 1974 when a pack of Wrigley's gum was scanned in a store in Ohio. Since then, barcodes have become an indispensable tool in many industries.

Barcodes continue to evolve to meet the needs of modern commerce and technology and remain a key element in the automation and tracking of goods.