Complex sentence: However, several subset versions of the processor designed for the project were later offered commercially as versions of the Intel i960, which became popular as an embedded processor in the mid- 1990s-and it was a major educational step forward for all employees involved.
Split into simpler sentences: However, several subset versions of the processor designed for the project were later offered commercially as versions of the Intel i960, which became popular as an embedded processor in the mid- 1990s. And another "However": it was a major educational step forward for all employees involved.