WIFI is a wireless networking technology (commonly known as: Wireless broadband), today's mobile terminals (laptops, tablets, smartphones, MP4) can basically receive WIFI signals, WIFI access is completely free, WIFI is basically divided into public and private use, now the first-tier cities will be popular WIFI signals, as long as the WIFI receiver will automatically scan the nearby WIFI, The public WIFI range is relatively wide and password free can be connected, private WIFI is basically encrypted, and now the family will use the network cable WIFI wireless router (Advantages: Completely get rid of network cable and device connection 1 network cable can provide all wireless devices in the whole house Internet access, any mobile terminal with WIFI receiving device can be used, the whole house can cover the signal, support multiple devices at the same time connection, support fiber optic speed transmission)
Today's more high-end mobile phones can be WIFI hotspots (equivalent to WIFI wireless routers, using SIM card traffic to transmit WIFI signals, mobile phone traffic. WIFI receives traffic, no traffic do not do hot spots, very expensive) pure hand play
WIFI terminal refers to the terminal module used to achieve wireless data transmission, which is usually connected to the lower computer to achieve the purpose of wireless data transmission.
There is the title of the mobile phone in the industrial field, because its transmission principle is basically the same as the data transmission of the mobile phone we usually use. Typical devices include wireless data transmission, wireless router, wireless Modem and other devices.