Complex sentence: MiniScribe designed and sold stepper motor-based hard disks with a large amount of onboard intelligence for the time, eventually moving into higher-profile voice coil motor designs before going bankrupt in 1990, and subsequently being purchased by Maxtor.
Split into simpler sentences: MiniScribe designed and sold stepper motor-based hard disks with a large amount of onboard intelligence for the time. They eventually moved into higher-profile voice coil motor designs before going bankrupt in 1990, and subsequently being purchased by Maxtor.