Understanding Computers: Today & Tomorrow, Comprehensive 2007 Update EditionGive your students a classic, well-rounded introduction to computer concepts with a modern twist! Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. |
From inside the book
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Page iv
... Barcode Readers from the laser A barcode is an optical code that represents data with bars of varying widths . Barcodes are absorb the light , and the barcode reader interpects the patterns of white space or men repressed by the barcode ...
... Barcode Readers from the laser A barcode is an optical code that represents data with bars of varying widths . Barcodes are absorb the light , and the barcode reader interpects the patterns of white space or men repressed by the barcode ...
Page 144
... Barcodes are read with barcode readers . To read the data encoded in the barcode , light from the laser inside the barcode reader is reflected from the light spaces on the barcode ( the dark bars absorb the light ) , and the barcode ...
... Barcodes are read with barcode readers . To read the data encoded in the barcode , light from the laser inside the barcode reader is reflected from the light spaces on the barcode ( the dark bars absorb the light ) , and the barcode ...
Page 145
... barcode readers are also avail- able . Portable barcode readers ( either ded- icated barcode reading devices or portable PCs with built - in barcode reading capabil- ities ) are used by workers who need to scan barcodes while on the go ...
... barcode readers are also avail- able . Portable barcode readers ( either ded- icated barcode reading devices or portable PCs with built - in barcode reading capabil- ities ) are used by workers who need to scan barcodes while on the go ...
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Common terms and phrases
activities addition allow application software Blah browser cameras Chapter Objective communications connect contain create credit card customers database designed desktop PCs discs discussed disk display document e-commerce e-mail messages Edit View Favorites electronic employees encryption example Favorites Tools Help File Edit View flash memory folder format graphics handheld PCs hard drive hardware identity theft images individuals input installed keyboard located malware Microsoft Internet Explorer monitor movie multimedia operating system options organization password phishing printers processing programming language record RFID screen server shown in Figure smart card software program specific spyware storage stored tablet PC Test types typically users View Favorites Tools Web bugs Web-based Wi-Fi Windows wireless XHTML