一种想法是将无线掌上电脑作为一种电子钱包，授权在商店支付，代替现金和信用卡。
One idea is to use the wireless PDAs as a kind of electronic wallet, authorizing payments in stores, as a replacement for cash and credit CARDS.
并且通过开发掌上电脑PD A无线点菜系统软件实现了无线网络在餐饮管理信息系统中的应用。
And through develop palmtop computer PDA wireless to order systems soft ware realize wireless network in food and beverage application of the the management information system.
解决了基于无线网络的掌上电脑视频获取与显示、设备控制等关键技术，使掌上电脑成为设备监控与故障诊断系统中的一种便捷的工具。
The key technologies of video display, equipment control with PDA based on wireless network are implemented, which makes PDA to be a convenient tool in MFDS.
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