Computer

Never use JPEG with text. But why? Image Analyst Mike Pound explains what goes wrong when JPEG tries to compress text. Holy Grail of AI: https://youtu.be/tlS5Y2vm02c Computer That Changed Everything: https://youtu.be/6LYRgrqJgDc Arduino Hardware: https://youtu.be/b4z1zkmo1BE How JPEG Works: https://www.youtube.com/playlist?list=PLzH6n4zXuckoAod3z31QEST1ZaizBuNHh http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the
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Substitution-permutation networks are the basis for almost all modern symmetric cryptography. Dr Mike Pound explains. https://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com
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How are encryption standards constants chosen? Dr Mike Pound explains these not-so-magic numbers. http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com
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The basis of almost all functional programming, Professor Graham Hutton explains Lambda Calculus. http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com
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Turing Machines are the basis of modern computing, but what actually is a Turing Machine? Assistant Professor Mark Jago explains. Turing & The Halting Problem: http://youtu.be/macM_MtS_w4 Busy Beavers: https://youtu.be/CE8UhcyJS0I Avatars & In-Flight VR: http://youtu.be/TLKqKlrQv4s The (pink) VR Simulator: http://youtu.be/Lm0lA0enPSk http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at
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Kerberos is an authentication method – Dr Mike Pound explains how it works so neatly. EXTRA BITS: Kerberos Q&A https://youtu.be/QN4WmZXi4tg https://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com
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They’re called ‘Finite State Automata” and occupy the centre of Chomsky’s Hierarchy – Professor Brailsford explains the ultimate single purpose computer. Note: Professor Brailsford omitted the transition from the 5 state to 25 state by means of a 20p, he has amended the linked notes! Chomsky’s Hierarchy: https://youtu.be/224plb3bCog $5 Computer – Raspberry Pi Zero: https://youtu.be/WR0ghM3U0M4
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Hyperspace was hijacked by science fiction, but what is a space? Robert Miles explains with the use of small red rabbits and human faces. How Broadband ADSL Works: http://youtu.be/uwtGfyna62I Busy Beaver Turing Machines: http://youtu.be/CE8UhcyJS0I Public Key Cryptography: http://youtu.be/GSIDS_lvRv4 http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the
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Over Computerphile’s first year, we asked each contributor the question: “Mac or PC?” as part of our sound-check. Here are the answers… nb – we know that PC is defined as Personal Computer, and that to be pedantic, a Mac ‘is’ a PC, but in general, ‘PC’ is the way people refer to a machine
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Most of us deal with data compression on a daily basis, but what is it and how does it work? Professor David Brailsford introduces compression with regards to text and pictures. http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. (some questions from Brady, in case you are confused!) Computer Science
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Password1 is a terrible password, but how can I remember different secure passwords for each login? Use a password manager. Dr Mike Pound explains how they work. How to Choose a Password: https://www.youtube.com/watch?v=3NjQ9b3pgIg Password Cracking on a 4x Titan X Beast: https://youtu.be/7U-RbOKanYs Securing Stream Ciphers (HMAC): https://www.youtube.com/watch?v=wlSG3pEiQdc https://www.facebook.com/computerphile Tweets by computer_phile This video was filmed
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Dijkstra’s Algorithm finds the shortest path between two points. Dr Mike Pound explains how it works. How Sat Nav Works: https://youtu.be/EUrU1y5is3Y Slow Loris Attack: https://youtu.be/XiFkyR35v2Y http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran’s Numberphile.
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We’ve all heard of web browser caches, but why does a super fast modern CPU need a cache? Because it’s too fast. Dr Steve “Heartbleed” Bagley explains. Professor Steve Furber on Building the BBC Micro: https://youtu.be/y4WG549i3YY How Computer Memory Works: https://youtu.be/XETZoRYdtkw Why Asimov’s Laws Don’t Work: https://youtu.be/7PKx3kS7f4A The Problem with JPEG: https://youtu.be/yBX8GFqt6GA http://www.facebook.com/computerphile Tweets by
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Audible free book: http://www.audible.com/computerphile Representing symbols, characters and letters that are used worldwide is no mean feat, but unicode managed it – how? Tom Scott explains how the web has settled on a standard. More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott EXTRA BITS: http://youtu.be/qBex3IDaUbU Data Security: http://youtu.be/4SSSMi4X_mA http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed
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