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)....
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...
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
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...
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...
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...