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  3. With mobile phones now doubling as everything from cameras to music players, a wireless technology known as Bluetooth is in a lo

With mobile phones now doubling as everything from cameras to music players, a wireless technology known as Bluetooth is in a lo

admin2022-05-13  30
问题 With mobile phones now doubling as everything from cameras to music players, a wireless technology known as Bluetooth is in a lot of people’s pockets too. This wireless protocol allows us to send photos from our phones to a computer. Most computers are Bluetooth-compatible, but if you have an old model that isn’t, ask about a device for your USB drive to provide wireless connectivity.
　　The technology can also be used to stream music from a phone to a hi-fi unit; gaming consoles, which long ago ditched the cords that connect controllers to the main unit, now use Wi-Fi networks to connect players worldwide; and some radios can connect to wireless LANs, exposing them to worldwide radio stations?
　　Wireless technology is also appearing in stereos. In Sony’s Radio Frequency system, for example, speakers are connected wirelessly to amplifiers, so they can be placed anywhere in a room, the only cord being the plug into the wall. Cord-free electricity is some way off yet, but a wireless world no longer seems like pie in the sky.
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答案 随着手机像照相机、音乐播放器等各种电子设备那样大量涌现，如今一种叫作“蓝牙”的技术又成了许多人的新宠。人们可以通过蓝牙技术将相片从手机无线传输到电脑中。许多电脑也都装有蓝牙适配功能，对于那些不具备蓝牙功能的电脑来说，同样可以借助对USB驱动添加相应的设备来实现无线连接。 　　这项技术同样可以将音乐文件从手机中导入hi-fi设备中。在游戏板支架中虽然早已实现了遥控设备与主设备之间的无线连接，而通过Wi-Fi网络连接设备又进一步实现了全球范围游戏玩家之间的连接。另外，一些收音设备通过无线LAN连接可收听到全球的广播电台。 　　无线技术还应用到音响设备中。例如，索尼收音变频设备的扬声器通过无线连接技术与扩音器相连，从而可以使室内的各个角落收听到同样的音响效果，唯一的带线设备就数墙上的插头了。虽然距实现免插头电子设备还有一段路要走，但一个无线的世界已经不再是空中楼阁而遥不可及了。
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