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    • Page 22

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    • Figure 3.1 Figure 3.2 Hardware consists of physical devices—the components you can see and touch. Digital hardware always contains a processor, usually in the form of a computer chip, located somewhere in the central processing unit (CPU)....
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    • DigiTrends Increasing Disk Capacities The original floppy diskette for PCs held only 180 KB of storage. Over the years, this was replaced by higher capacity floppies and then by 3.5 inch diskettes. Today, USB “thumb drives” can hold 8, 16, or...
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    • Figure 3.10 Displays for Digital Devices DigiTrends Display Developments Year Monitor Type Developer(s) Explanation 1976 CPU Encased Apple First B&W monitors encased in the CPU box 1977 Detached Apple First non-CPU encased monitor for Apple II 1977...
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    • DigiTrends Printer Developments Year Printer Type Developer(s) Explanation 1977 Laser Printer Xerox First laser printers cost $350,000 1978 MX-80 dot matrix Epson First dot matrix printer for PCs 1984 HP LaserJet Hewlett-Packard First HP LaserJet...
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    • computers now use, both in terms of cost and speed? What additional features do they offer? Discuss your findings with the class. ! Audio Developments (p.56): Search the Internet for information on MP3 music files and players. How long (in terms of...
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    • 10. How do laser printers and ink jet printers compare to each other? Which is the most cost effective in printing color? 11. What is an acoustic coupler and how does it compare to modern modems? What is handshaking, and why is it necessary between...
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    • Grant, A.E. (Ed.). (1996). Communication technology update (5th ed.). Boston, MA: Focal Press in association with Technology Futures, Inc. Grant, A.E., & Meadows, J.H. (Eds.). (2000). Communication technology update (7th ed.). Boston, MA: Focal...

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