Seems hard to believe how leading edge the military used to be with computers. The Navy, for instance, adopted all-digital fire control systems in a concerted

Seems hard to believe how leading edge the military used to be with computers. The Navy, for instance, adopted all-digital fire control systems in a concerted push to adapt to masses of Soviet planes equipped with anti-ship missiles... in 1961, years before IBM would even announce System/360. At a time when Air Force tracking computers filled entire buildings, the Navy's fire control computers had to fit on individual ships (an issue which hampered earlier Canadian efforts using vacuum tubes). This system also could communicate with similarly-equipped ships in range wirelessly, so that ships detecting aircraft could quickly update the computer memory (and display) of allied ships.