. 29K 3-bus microprocessors included the 29000, 29005 and 29050. They have seperate buses for data, addresses and instructions. All three of these CPUs are pin compatible and are 5 Volt devices. The 29005 was the value chip with the 29050 being the premier microporcessor. Thee 29050 possed a very capable FPU. It was a VERY capable processor and is still in wide use today.