Complex sentence: The Snow White design language was developed by Hartmut Esslinger's Frog Design, and was used from 1984 to 1990, the Apple IIc was the first Apple product to use the design language.
Split into simpler sentences: The Snow White design language was developed by Hartmut Esslinger's Frog Design, and was used from 1984 to 1990. The Apple IIc was the first Apple product to use the design language.