Tech+Class

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SCANNER A scanner is an “optical character recognition machine consist of a scan head, computer processor, and an output device.” The scan head reads a scannable image which it then transfers into usable form. Scanners come in different varieties that are “capable of reading preprinted alphanumeric characters in specific fonts, barcodes, or hand-printed letters or symbols.” Alphanumeric characters are characters consisting of both characters and numbers. Payment scanners called encoders can scan an alphanumeric scan line on invoices and can instruct and support the checks at the same time. Document scanners can read up to 18,000 documents per hour. Wand scanners are used to read the barcodes on merchandise, such as clothes. Scanners are used everywhere you look, in your home, in school, at work, and at stores.

Unknown. "Marketing Dictionary: Scanner." //Answers.com//. Answers Corp., 2010. Web. 23 Feb. 2010. .