Complex sentence: In 1973, work on CT was started and eventually the first CT was installed in 1976, and development went on to the first CT 8800, and after long negotiations, the medical division of EMI was acquired in late 1980.
Split into simpler sentences: In 1973, work on CT was started and eventually the first CT machine was installed in 1976. Development continued to the first CT 8800, and after long negotiations, the medical division of EMI was acquired in late 1980.