Successor to Osprey 18B, EISA/ISA bus compatible, it occupies one PC slot. Writable control store FPGA implementation of PDP-11 architecture with 4 MBytes of tightly coupled, zero wait-state memory. Performance equivalent to DCJ11. Rapidly processed "virtual" I/O instructions makes this card ideal for Osprey/PC applications where all applicable I/O devices are emulated on the PC by Osprey software. Includes MS-DOS compatible support software. Windows™ environment support available.