Waxyhas put up online an extremely rare and valuable video documentary about the history of computers: “The Machine That Changed The World”.

The Machine That Changed the World is the longest, most comprehensive documentary about the history of computing ever produced.

It’s a whirlwind tour of computing before the Web, with brilliant archival footage and interviews with key players — several of whom passed away since the filming. Jointly produced by WGBH Boston and the BBC, it originally aired in the UK as The Dream Machine before its U.S. premiere in January 1992. Its broadcast was accompanied by a book co-written by the documentary’s producer Jon Palfreman.

Here’s the first of the five-part series, The Machine That Changed the World. Go to Waxy and subscribe to its feed to be noticed when the 4 others are published.