Complex sentence: He received his bachelor's degree in computer science in 1979 from the University of Illinois at Urbana-Champaign, where he worked on the PLATO system, and began his working career at Data General Corporation where he worked for Jonathan Sachs.
Split into simpler sentences: He received his bachelor's degree in computer science in 1979 from the University of Illinois at Urbana-Champaign, where he worked on the PLATO system. Ozzie began his working career at Data General Corporation where he worked for Jonathan Sachs.