Complex sentence: The next year NCR contributed the WaveLAN design the the IEEE 802 LAN/MAN Standards Committed founding the 802.11 Wireless LAN Working Committee which produced the IEEE 802.11b standard, a close sibling of WaveLAN, which became known popularly as WiFi.
Split into simpler sentences: The next year NCR contributed the WaveLAN design to the IEEE 802 LAN/MAN Standards Committee. This led to the founding of the 802.11 Wireless LAN Working Committee which produced the IEEE 802.11b standard, which became known popularly as WiFi.