A rectangular image consisting of black lines and white spaces representing data which can be optically read is called?

The rectangular image consisting of black lines and white spaces that represent data and can be optically read is called a barcode. Barcodes are used to store and retrieve information about products or items quickly and accurately. The pattern of black and white lines in a barcode represents a specific sequence of numbers or letters, which can be read by a barcode scanner. When a barcode is scanned, the scanner translates the pattern of lines and spaces into the corresponding sequence of characters, which can be used to identify the product or item. Barcodes are used in a variety of applications, such as retail sales, inventory management, and shipping and logistics. They are a fast and efficient way to track and manage large numbers of items, and they help to reduce errors and improve accuracy in data entry and tracking. In summary, a barcode is a rectangular image consisting of black lines and white spaces used to represent data that can be optically read by a barcode scanner. It is an important tool for tracking and managing items in a variety of industries.