This could also be done through a wired system, but wireless technology offers lower installation costs and greater flexibility.

有线系统当然也可以做到这一点，但无线技术所需的安装费用更低，也更加灵活。

youdao

While there's a perception that a wireless network is less secure than a wired system, Green said new security protocols have made wireless more secure.

FORBES: Hacking The Security Experts

And compared with last year, when the cost to install wireless Ethernet was 10 to 15 percent more than installing a wired system using Category 5 copper cable, wired and wireless cost about the same today, said Murphy.

CNN: Students augment in-class education with wireless Web

The scare stories flow off the word-processors as if hard-wired into the system.

BBC: NEWS | UK | Politics | Text of Michael Howard's speech