Complex sentence: In the early 1970s audio technology advanced, and vinyl albums gave way to audio cassettes, and filmstrips moved beyond traditional arts and humanities courses, branching into the sciences and vocational/technical subject areas.
Split into simpler sentences: In the early 1970s, audio technology advanced, and vinyl albums gave way to audio cassettes. Filmstrips also moved beyond traditional arts and humanities courses, branching into the science, vocational, and technical subject areas.