Complex sentence: Meiko had hired Fred (Mark) Homewood and Moray McLaren both of whom had been instrumental in the design of the, together they architected and developed an improved, higher performance FPU core, owned by Meiko.
Split into simpler sentences: Meiko had hired Fred (Mark) Homewood and Moray McLaren both of whom had been instrumental in the design of the. Together they architected and developed an improved, higher performance FPU core, owned by Meiko.