https://ykyi.net/tags/%E7%BD%91%E7%BB%9C%E5%8D%8F%E8%AE%AE/ Recent content in 网络协议 on kamuszhou's blog Hugo zh-cn Tue, 19 Jun 2012 11:05:52 +0000 https://ykyi.net/?p=687/ Tue, 19 Jun 2012 11:05:52 +0000 https://ykyi.net/?p=687/ <p>WLAN(Wireless Lan) was invented in University of Hawaii, 1970, under the leadership of Professor Norman Abramson.The wireless network communicated using radios, without using phone lines making it easy to deploy over Hawaii islands.</p> <p>Original WLAN hardware was used as an alternative to cabled network where cabling was impossible or difficult. The protocals of WLAN at that time was proprietary. Many companies and universities appealed to establish a set of protocals as industry protocals. In the end of the 1990s, IEEE 802.11(Wifi) came to satisfy the urgent need. Subsequent amendments such as 802.11a, 802.11b, 802.11g, 802.11n was published in the following years. Other proprietary protocals was then graduately replaced by 802.11 family.</p>