NORD-1
It was a 16-bit system, developed in 1967. The first NORD-1 (serial number 2) installed was an anti-collision system used with the NORCONTROL process control system aboard the ship M/S Taimyr, where it proved extremely reliable for its time. It was probably the first minicomputer to feature floating-point equipment as standard, and had an unusually rich complement of registers for its time. It also featured relative addressing, and a fully automatic context switched interrupt system. It was also the first minicomputer to offer virtual memory, offered as an option by 1969. It was succeeded by the NORD-10.