Basic Computer Notions Networks

Next Point-to-point (mesh) Ring Ring (cont'd) Ring (cont'd) Bus Star Competing needs and solutions Token ring Ethernet Asynchronous Transfer Mode (ATM) Real world Real world (cont'd) Real world (cont'd) Real world (cont'd) Real world (cont'd) Wireless Wireless (cont'd) Protocols Invisible computing 20 of 32 Medical applications RFID RFID (cont'd) Medical applications Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd)

GPS

Sci. Am., 2004 May

First GPS satellite launched for military use in 1978.

Requires line of sight to multiple satellites.
Accuracy of 5 to 10 m.

Improving coverage and accuracy.

GPS receivers can be mounted in cell phones, pagers, wristwatches, etc.

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Last modified: Tue, 2007 Mar 20 17:56:43

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