Barcode

A barcode is an optical machine-readable representation of data relating to the object to which it is attached. Originally barcodes systematically represented data by varying the widths and spacings of parallel lines, and may be referred to as linear or one-dimensional (1D). Later they evolved into rectangles, dots, hexagons and other geometric patterns in two dimensions (2D). Although 2D systems use a variety of symbols, they are generally referred to as barcodes as well. Barcodes originally were scanned by special optical scanners called barcode readers. Later, scanners and interpretive software became available on devices including desktop printers and smartphones.

                       Barcode In library

lEFFECTIVE LIBRARY NEEDS EACH DOCUMENT BAR CODED

lTWO LABELS PREFERABLY

lLABEL TO CONTAIN

–Accession number equivalent Bar Code

–Call number

–Institution logo advantageous

lISBN BAR CODE COULD BE USED

lDATABASE PROGRAM LINKS THE BAR CODE TO BIBLIOGRAPHIC DETAILS OF DOCUMENTS

lAUTHORISED ID CARD INCLUDES BAR CODE

–Card could be used by library

–Institutional ID card

–Social security number

lBAR CODE READER INTERFACED TO COMPUTER

lTRACKING OF BOOKS