Tech Talk: What is Public Key Infrastructure (PKI)
IBM, EBCDIC & A Meg-In-A-Box - Computerphile
Architecture of IBM PC 5150
Colossus & Bletchley Park - Computerphile
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Last Updated: October 31, 2026
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Summary
How did punch card systems work? Professor Brailsford delves further into the era of mainframe computing with this hands-on ... You actually have to work quite hard to set a private key to the number 4! - Dr Tim Muller takes us through the problems with ... The Mythical Man Month wasn't just about project management! The Professor continues this tale from the 1960's & asks "Could ... No internet, no networking; just a screen and a keyboard, or a pile of cards to punch holes in; mainframes were a world apart from ... After the multi-processor video we look at processors that are central-ish.... Dr Steve Bagley takes apart the old The Compaq portable was the first CP/M was the first microcomputer OS, yet it lost out to DOS and never recovered the ground. Spencer Owen explains EXTRA BITS ... Get Bonus video on Nebula with a discount: go.nebula.tv/lowspecgamer Why do we have 8 bits in a byte? Professor Brailsford on the origins of the humble byte. Why Use Binary? Get an unrestricted 30-day free trial of FreshBooks at freshbooks.com/techquickie Learn more about encryption → Colossus was one of the very first electronic, special purpose,