MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -➢ There are two types of barcodes: linear – or 1D, and 2D. ➢ The most visually recognizable, the UPC (Universal Product Code) is a linear (multiple vertical lines) 1D barcode made up of two parts: the barcode and the 12-digit UPC number.

Detailed explanation-2: -Barcodes are available in two different types: Linear barcodes and two-dimensional matrix barcodes.

Detailed explanation-3: -Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots. A single 2D barcode can hold a significant amount of information and may remain legible even when printed at a small size or etched onto a product.

Detailed explanation-4: -Operationally, the critical difference between the two types of barcodes is in the type of reader required to scan them. Linear codes can be read with a traditional laser scanner; 2D barcodes must be read using a camera-based imaging scanner. However, as noted before, an imaging scanner can read both types of codes.

Detailed explanation-5: -Linear barcodes, also called “one dimensional barcodes” are made up of lines and spaces that create specific patterns. They are used on a wide variety of products and applications around the world.