The first Wi-Fi standard was made in 1997. It is called IEEE 802.11. It allows communication with 1-2 MBit per second. Today it is outdated, and rare. Later standards add a letter to the name. They are labelled IEEE 802.11a to IEEE 802.11g. There are plans for ones labeled h, i, j, n, p and s. They are all compatible with each other.