For a general introduction to cellular technology, take a look at the article, "What Is Cellular?" at www.internet-connections.net/web2/cellrone/
whatiscelular.html. For an excellent technical introduction to the topic of mobile computing, read "Mobile Computing and Disconnected Operation: A Survey of Recent Advances" at www.cis.ohio-state.edu/
~jain/cis788-95/mobile_comp/index.html. For more general articles, ranging from reviews of new products to advice about choosing a cellular telephone, avoiding injury while traveling, or protecting your equipment from theft, read Mobile Computing Online magazine at www.mobilecomputing.com. Using the cellular phone network for Internet access can be a bit tricky. 3Com provides a helpful overview at www.3com.com/
news/releases/cdma_faq.html (www.3com.com/
carrier/nsd/technology/30201.html is no longer available). Suppliers of mobile computing products and services include Bell Atlantic Mobile (www.bam.com), Cellular One (www.cellularone.com), Aironet Wireless Communications (www.aironet.com), and Fujitsu Personal Systems (www.fpsi.com).