For those who served in the RVAH Community, their families, and friends!
Judging by the age of the vehicles, there was no such thing as a "hard drive" yet. It was still "drum storage" which would have been a cabinet at least twice as deep and 2-3 times as long. It would be interesting to know the contents. Probably used vacuum tubes since they hadn't even introduced the "Selectric" Typewriter yet! As long as I was with Univac (late 60s to the late 70s) we were neck-and-neck with IBM and it wasn't until the mid-to-late 70s that we had replaced most of our drum storage devices with "disc drives" which later came to be known as "hard drives" when the toy computers of today evolved. I would sure like to have the Jeep and/or the car behind the van!
Whatever is "under wraps" in today's world would probably fit in your pocket, sell for a very small fraction of the "under wraps" price, do infinitely more, in a much shorter time frame.