the NS32032 extended with an arbiter. The bus usage of the NS32032 is about 50 percent, owing to its very compact instruction set, or its very slow pipeline as competitors would phrase it. Indeed, one suggested application of the NS32032 was as part of a "fault-tolerant transaction system" employing "two 32032s in parallel and comparing results on alternate memory cycles to detect soft errors". The NS32132 chip allows a pair of CPUs to be connected to the same memory system, without much change of the PCB. Prototype systems were built by Diab Data AB in Sweden, but did not perform as well as the single-CPU MC68020 system designed by the same company. Machines using the NS32000 series Acorn Cambridge Workstation – NS32016 (with 6502 host) BBC Micro – NS32016 Second Processor Canon LBP-8 Mark III Laser Printer – NS32CG16 CompuPro 32016 – NS32016 S-100 Card Encore Multimax – NS32032, NS32332 and NS32532 Multiprocessor E-mu Systems Emax – NS32008 E-mu Systems Emulator III – NS32016 ETH Zürich Ceres workstation – NS32032 ETH Zürich Ceres-2 workstation – NS32532 ETH Zürich Ceres-3 workstation – NS32GX32 General Robotics Corp. Python – NS32032 & N32016 Q-Bus card Heurikon VME532 – NS32532 VME Card (with cache) IBM RT PC – Some early models used the NS32081 FPU as a coprocessor for the IBM ROMP microprocessor Intermec (previously A-Tech and then UBI) Label Printer – NS32CG16 Labtam Unix System NS32032 and NS32332 CPUs Lauterbach Incircuit Emulator ICE (System Controller 32-bit, first version in 1996, max 16 MB ZIP20-RAM, Z180 to serve Ethernet) National Semiconductor ICM-3216 – NS32016 National Semiconductor ICM-332-1 – NS32332 w/ NS32016 I/O processor National Semiconductor SYS32/20 – NS32016 PC add-on board w/ Unix Opus Systems Opus516 Personal Mainframe – NS32016 PC Add-On Board Opus Systems Opus532.32 Personal Mainframe – NS32032 PC Add-On Board PC532 – NS32532 Sequent Balance – NS32016, NS32032 and NS32332 multiprocessor Siemens PC-MX2 – NS32016 Siemens MX300-05/-10/-15/-30 – NS32332 (−05/-10) or NS32532 (−15/-30) under SINIX (MX300-55 and later use i486) Siemens MX500-75/-85 – NS32532 (2-8x CPUs; Sequent Boards / MX500-90 uses 2-12x i486) Symmetric Computer Systems S/375 – NS32016, used to cross-develop 386BSD Syte Information Technology – Unix graphics workstation Tektronix 6130 & 6250 Workstation – NS32016 and NS32032 Tolerant Systems Eternity Series – NS32032 w/ NS32016 I/O processor Trinity College Workstation – NS32332 Teklogix 9020 network controller – NS32332 Teklogix 9200 network controller – NS32CG160 Whitechapel MG-1 – NS32016 Whitechapel