tech

cheatsheet

boards

WPA/WPA2

七层网络模型:

记忆方法:“物数网传会表应”,记住这7个字,就记住了这七层

数据最终通过数据链路层+物理层传输到硬件网络,在数据链路层和物理层上的数据都是通过层层数据封装实现的。

wifi distance

wifi IEEE standard

Wireless-N USB 2.0

Wireless-N USB 2.0 Adapter allows you to connect your laptop or desktop to any Wireless-N networks in your home or office. The Wireless-N (802.11n) USB 2.0 Adapter is great for those who want to upgrade older computers to be able to access the internet over a Wireless-N network.

At 5 times faster than traditional Wireless-G (802.11b) networks, Wireless-N networks allow for high speed data transfers, online gaming, and lightning fast downloads. The Wireless-N USB 2.0 Adapter gives you access to all the high-speed features of Wireless-N networks on older and newer computers. Its simple and easy setup means you'll be surfing the internet, downloading movies, and e-mail in no time.

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