Wireless security settings on TP-LINK

We will observe this device:
150M Wireless Lite N Router
Model No. TL-WR740N / TL-WR740ND

WEP
Type: {Automatic, Open System, Shared Key}
WEP Key Format: {Hexadecimal, ASCII}
Key Selected WEP Key(Password) Key Type

Look below picture to clarify:

WPA/WPA2 - Enterprise
Version: {Automatic, WPA, WPA2}
Encryption: {Automatic, TKIP, AES}
Radius Server IP: ___
Radius Port: 1812 (1-65535, 0 stands for default port 1812)
Radius password: ___
Group Key Update Period: ___ (in second, minimum is 30, 0 means no update)

 

WPA/WPA2 - Personal
Version: {Automatic(Recommended), WPA-Personal, WPA2-Personal}
Encryption: {Automatic(Recommended), TKIP, AES}
Password: ___
(You can enter ASCII characters between 8 and 63 Hexadecimal characters between 8 and 64.)
Group Key Update Period: ___ seconds (Keep it default if you are not sure, minimum is 30, 0 means no update)

So whats the different between WPA/WPA2 - Enterprise and WPA/WPA2-Personal?