Review Vocabulary

691

Review Vocabulary

Bar code A code that employs bars and spaces to represent information. (pp. p. 680 p. 681)

Binary code A coding scheme that uses two symbols, usually 0 and 1. (p. 681)

Check digit A digit included in an identification number for the purpose of error detection. (p. 670)

Error-detecting code A code in which certain types of errors can be detected. (p. 670)

European Article Number (EAN) A 13-digit identification number used on most retail items in Europe. It detects 100% of single-digit errors and most other errors. (p. 672)

International Standard Book Number (ISBN) An identification number used on books throughout the world that contains a check digit for error detection. (p. 669)

Luhn algorithm An error-detecting method used by credit cards, libraries, blood banks, the Canadian Social Insurance program, and others. (p. 673)

Postnet code The bar code used by the U.S. Postal Service for ZIP codes. (p. 681)

Soundex Coding System An encoding scheme for surnames based on sound. (p. 689)

Universal Product Code (UPC) A bar code and identification number that are used on most retail items. The UPC code detects 100% of all single-digit errors and most other types of errors. (p. 671)

Weights Numbers used in the calculation of check digits. (p. 672)

ZIP code A five-digit code used by the U.S. Postal Service to divide the country into geographic units to speed sorting of the mail. ZIP stands for Zone Improvement Plan. (p. 679)

ZIP + 4 code The nine-digit code used by the U.S. Postal Service to refine ZIP codes into smaller units. (p. 680)