移動電子商務(wù)畢業(yè)論文外文翻譯-電子商務(wù)(編輯修改稿)
2025-02-24 01:10 本頁面
【文章內(nèi)容簡介】 teristics. First, users must sit in front of them. Second, even portable notebook PCs require loading software, dialing into and connecting with a work service provider, and awaiting pletion of the handshaking process before launching an Inter application. This sequence is understandable, but at best it seems a tolerable nuisance. Hence, the dominant applications are still those that are worth the trouble it takes for a user to follow this access sequence or, at least, to keep the puter and applications running. The aggregate PC installation is substantial, but even more mobile munication devices are in use. The Gartner Group and other research firms project that by 2021, the installed base of mobile phones worldwide will exceed 1 billion— more than twice the number of PCs. In addition, the number of other wireless mobile devices will also increase dramatically. Wireless PDA use will more than triple in the next three years. Unlike PCs, these wireless devices require no boot sequence, so people can use them as soon as they turn them on—making them attractive for quickhit applications. Wireless protocol standards Just as the transmission control protocol/Inter protocol and the generalpurpose browser were principal drivers of Inter growth, letting disparate devices interconnect and municate, similar factors will simplify the interconnectivity and munication of heterogeneous wireless devices. As Figure 2 shows, mobile work carriers have relied on a variety of inpatible wireless access standards. Recently, however, a mon munications technology and uniform interface standard for presenting and delivering wireless services on mobile devices—wireless application protocol (WAP)—has emerged. WAP specifications include a microbrowser。 scripting similar to JavaScript。 access functions。 and layered munication specifications for sessions, transport, and security. These specifications enable interfaceindependent and interoperable applications. Most wireless handset and device manufacturers, as well as several service and infrastructure providers, have adopted the WAP standard. Ample bandwidth Current access technologies, including TDMA (time division multiple access), CDMA (code division multiple access), and GSM (Groupe Sp233。cial Mobile), transmit at to Kbps. These speeds are dramatically slower than the dialup rates of desktop PCs connecting to the Inter. Although mmerce is possible at these bandwidth rates, the slow speeds are not conducive to creating widespread business or consumer participation. By 2021, 3G (thirdgeneration) wireless technology will be available. Besides having greater bandwidth rates, with speeds up to 2 Mbps, 3G will support multimedia transmission. Integrating voice, data, and one or twoway video will let mmerce run over any wireless device. Moreover, active support from the International Telemunications Union is likely to make 3G practical. MCOMMERCE APPLICATIONS Mmerce applications fall into three main categories: transaction management,
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