Teenagers with their smartphones will be amazed: the first computers were fed perforated pieces of paper that were punched with punch pliers -- much like the Jacquard looms that created intricate and complex fabric patterns.
This is the incredible story of German inventor Konrad Zuse, who built his first computer in his parent's living room at the end of the 1930's. Materials like vacuum tubes were hard to come by, so Konrad used second-hand celluloid strips that got from film projectionists...
Advanced English students can read more of this fascinating story. There's test comprehension questions and exercises using participle phrases at the end. Answers are in the text!