The
first NTDS Ships, USS King (DLG-10), USS Oriskany (CV-34)and
USS Mahan (DLG-11)

Navy Tactical Data System
c. 1961
Sperry Univac Defense Systems, United States
The Navy Tactical Data System (NTDS) was an early transistorized
military fire control computer. Computer pioneer Seymour
Cray designed the machine in 1957 while at Remington Rand
Univac, just prior to joining Control Data Corporation.
This armored computer was extremely reliable in hazardous
environments and could control battleship radar and weapons
systems in real-time. Multiple computers could communicate
with each other to form a cooperative chain of machines.
Over the next three decades, the NTDS served as the basis
for an entire family of shipboard command and control computers