Understanding Computers: Today and TomorrowGive your students a classic, well-rounded introduction to computer concepts with a modern twist! Known for its readability and breadth of topics covered, Understanding Computers: Today and Tomorrow will ensure that students have the comprehensive, current knowledge of computer concepts and issues needed to succeed in our technocentric society. This 11th Edition offers exciting new features and updates to make its content more approachable and meaningful to students. |
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Page iv
... Barcode Readers A barcode is an optical code that represents data with bars of varying widths . Barcodes are read with barcode readers . To read the data encoded in the barcode , light from the laser inside the barcode reader is ...
... Barcode Readers A barcode is an optical code that represents data with bars of varying widths . Barcodes are read with barcode readers . To read the data encoded in the barcode , light from the laser inside the barcode reader is ...
Page 144
... barcode is an optical code that represents data with bars of varying widths . 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 ...
... barcode is an optical code that represents data with bars of varying widths . 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 ...
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 ...
Contents
TECHNOLOGY AND YOU Wired | 50 |
MODULE Hardware | 52 |
Input and Output 132 | 53 |
Copyright | |
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activities addition application software applications 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 floppy disk folder format graphics handheld PCs hard drive hardware identity theft images individuals input installed keyboard located Microsoft Internet Explorer monitor movie multimedia operating system options organization password phishing portable printers processing programming language record RFID screen server shown in Figure smart card specific spyware storage stored tablet PC Test types typically users View Favorites Tools Web bugs Web-based Wi-Fi Windows wireless XHTML