This is a beautiful 1959 video explaining some basic distributed computing concepts which we take for granted today, but were a new idea then. Ramo is the R in TRW.
I love the pre-powerpoint presentation style.

Simon Ramo’s concept of “polymorphic” computing is laid out in stop-motion animation, accompanied by acoustic guitar.
The film anticipates parallel, distributed processing and the architecture of ARPANET and the Internet.

[BoingBoing]