COMPUTER FUNDAMENTALS

Detailed explanation-1: -Barcode scanners (readers) “A barcode is a series of dark and light parallel lines of varying thickness. The numbers 0 to 9 are each represented by a unique series of lines.” UPC-Version A adopts different codes for digits appearing on the left and for digits appearing on the right.

Detailed explanation-2: -The standard size for the 1D symbologies is 13 mil, these bar codes are used as reference in retail stores. Mil, also known as bar code mils are used by the bar code scanner manufactures to state the minimum bar code bar width (or barcode module width) of one bar and at what distance the barcode can be scanned.

Detailed explanation-3: -barcode, a printed series of parallel bars or lines of varying width that is used for entering data into a computer system. The bars are typically black on a white background, and their width and quantity vary according to application.