Complex sentence: The 3B2 was the first desktop supermicrocomputer (1983) with a 32-bit microprocessor and UNIX, and the various versions of it were the first to introduce asymmetric multiprocessing (3B2/600 Falcon) and later, a nearly-symmetrical multiprocessing version (3B2/1000 Galactica).
Split into simpler sentences: The 3B2 was the first desktop supermicrocomputer (1983) with a 32-bit microprocessor and UNIX. Later versions were the first to introduce UNIX asymmetric multiprocessing (3B2/600 Falcon) and nearly-symmetrical multiprocessing (3B2/1000 Galactica).