a lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc.
personal digital assistant怎么读 personal digital assistant是什么意思
When my digital secretary wants references to local yellow pages and weather forecast, the service discovery1 must be aware of my geospatial location. 当我的个人数字助理想参考本地黄页和天气预报,服务发现必须关心我的地理位置。