802.11 for Wireless LAN standards, this article describes the use of Harris Semiconductor company PRISM~ (TM) 2.4GHz DSSS chipset, coupled with the media access controller, which constitutes a direct sequence of IEEE802.11 standard (draft) to extend the spectrum of wireless modem systems. On this basis, the wireless LAN can be realized, to reach the computer users can bring information to any place they want to go.