Double speed Windows™ Osprey Co-Processor for two times the system throughput, or more. Occupies one PCI slot. A writable control store, FPGA implementation of the PDP-11 architecture with 4 MBytes of tightly coupled, zero wait-state memory. Includes FPJ11^® compatible hardware floating point. Performance equivalent 2.0 times the DCJ-11^® and 100%; of FPJ-11. On-card x86 microprocessor rapidly processes "virtual" I/O instructions. PCI bus speeds increase disk throughput by at least a factor of ten. Qbus^®/Unibus^® support logic for non-emulated devices is provided on-board with connector to wide bandwidth fibrechannel Qbus or Unibus adapter. Operates only under Windows™. Support license included.