笔记本电脑已经成为现代商业旅行必备的设备,移动通信也就成了笔记本电脑用户关心的问题。移动通信可分为两种:一种有线数据通信。利用笔记本电脑+MODEM+电话线进行的数据通信;另一种无线数据通信。通过笔记本电脑+PC 卡+手机的组合完成数据通信。由于笔记本电脑的移动特性,许多时候用户所处的环境没有电话线,如火车上、汽车上、郊外等地方,有线数据通信方式就比较困难。所以对于笔记本电脑用户而言使用 PC 卡会更便捷一些。而联想东芝在最近推出 Laptops have become essential for modern business travel, and mobile communications have become a concern for notebook users. Mobile communication can be divided into two types: a wired data communication. Data communication using a laptop + MODEM + phone line; another type of wireless data communication. Through the combination of laptop + PC card + phone to complete data communications. Due to the mobile nature of laptops, many times users do not have telephone lines in environments where they are located, such as on trains, cars, suburbs, etc., where wired data communication is more difficult. So using PC Cards for laptop users is easier. Lenovo Toshiba recently launched