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What is Bar code and Its Usage? |
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Release time:2013-06-28 Source:pengdan Reads: | |
What is Bar code and Its Usage? The first use of bar codes was to label railroad cars, In 1967, with the railway system maturing, Collins went to management looking for funding for a project to develop a black-and-white version of the code for other industries. Unfortunately they declined, saying that the railway project was large enough and they saw no need to branch out so quickly. Collins then quit Sylvia and formed Computer Identic Corporation. This company made some improvement of the entire process of bar codes which is much simpler and more reliable and can deal with damaged labels by reading the intact portions. Bar codes were not commercially successful until they were used to automate supermarket checkout systems, a task for which they have become almost universal. There is a unique bar code for each item in supermarkets, either printed on the packaging or small bar code labels. Their use has spread to many other tasks that are generically referred to as automatic identification and data capture(AIDC). In some small stores, price & bar code labels are printed and sticked to objects when they are chosen and weighed. |