Question: What is WPS (Wi-Fi Protected Setup)?
WPS (Wi-Fi Protected Setup) is a protocol created by Wi-Fi Alliance to help you to use computer to join wireless network with wireless security encryption easily and simpler.
You are no longer need to set SSID, wireless encryption key and other wireless network settings on wireless router/access point if this feature is supported on wireless router/access point and wireless adapter/other network devices.
Usually you can have you computer connected to wireless network by pressing WPS button or using PIN only on both devices if both wireless router/access point and computer’s wireless adapter support this feature.
This is an example: