Managing Information Technology

58 Part I • Information Technology Bibliography Adhikari, Richard. 2008. “The mainframe still lives.” Internet News Web site,www ...

Chapter 2 • Computer Systems 59 Peachtree. 2010a. “Peachtree Premium Accounting.” Peachtree by Sage Web site, http://www.peachtr ...

60 This chapter is the second of a trio of chapters devoted to the building blocks of information technology. So far we have con ...

Chapter 3 • Telecommunications and Networking 61 businesses are also more dependent upon communication than ever before, and dev ...

62 Part I • Information Technology headquarters need to be able to retrieve summary data on sales and expenses from each of the ...

Chapter 3 • Telecommunications and Networking 63 revolution, managers need to have a rudimentary under- standing of the various ...

64 Part I • Information Technology variations in human speech characteristics) and was insen- sitive to minor degradations in th ...

Chapter 3 • Telecommunications and Networking 65 The notion of bandwidth, or capacity, is important for telecommunications. For ...

66 Part I • Information Technology commonplace. When a digital service such as DSL is used on the telephone network, a speed of ...

Chapter 3 • Telecommunications and Networking 67 cordless telephones, cellular telephones, wireless LANs, and microwave transmis ...

68 Part I • Information Technology Microwavehas been in widespread use for long- distance wireless communication for several dec ...

Chapter 3 • Telecommunications and Networking 69 more transponders that listen to a particular portion of the electromagnetic sp ...

70 Part I • Information Technology The plug was pulled on a third proposed LEO satellite system, named Teledesic, in October 200 ...

Chapter 3 • Telecommunications and Networking 71 Mesh Tree Ring Bus Star FIGURE 3.4 Network Topologies RING Thering topologyis s ...

72 Part I • Information Technology goes out, there are alternative routes to almost every node or device on the network. We will ...

Chapter 3 • Telecommunications and Networking 73 Bus PC PC PC PC PC PC PC Hub FIGURE 3.6 Shared Ethernet Topology: Logical Bus, ...

74 Part I • Information Technology The token bus design is central to the Manufacturing Automation Protocol (MAP), which was dev ...

Chapter 3 • Telecommunications and Networking 75 to all computers on the wireless LAN, specifying the amount of time for which t ...

76 Part I • Information Technology where very high data rates are required. Moreover, 40-gbps Ethernet (40 GbE) and 100-gbps Eth ...

Chapter 3 • Telecommunications and Networking 77 10-mbps Ethernet 16-mbps Token Ring LAN LAN Router Gateway Gateway To the Inter ...