Computer

Not enough just to crunch numbers in Air Traffic Control, you have to be able to display those numbers. John Linfield takes us through the kit. Corrective Comment: The Sony 2K monitors, as used at Swanwick/Prestwick, are not vector graphics displays. The PDP11/34s were more than a ‘graphics card’ they were Radar Display Processors which

After #thedress twitter-storm about what colour a dress appears to be in a photo, we asked image analyst Mike Pound to help ink in the details. The (pink) VR Simulator: http://youtu.be/Lm0lA0enPSk Real Life Holodeck with an Oculus Rift: http://youtu.be/7ZPs7knvs7M Animated GIFs and Space vs Time: http://youtu.be/blSzwPcL5Dw Computer Vision Series: http://www.youtube.com/playlist?list=PLzH6n4zXuckpbNdFO2WW78evpMBqgqyp8 http://www.facebook.com/computerphile Tweets by computer_phile This

A Computerphile viewer asked the question: Why do we need IP addresses when every network interface has its own Mac address? – I put it to Dr Richard Mortier; University Lecturer in the Computer Laboratory at the University of Cambridge Machine Learning Methods: https://youtu.be/qDbpYUbf3e0 How Search Engines Treat Data: https://youtu.be/vrjAIBgxm_w The Network Stack: https://youtu.be/PG9oKZdFb7w IP

Dicussing implementation with Professor Brailsford. Professor Brailsford emailed me after we recorded this to say that of course he should have discussed programming language selection too. Dijkstra’s Algorithm: https://youtu.be/GazC3A4OQTE Linked Lists: https://youtu.be/_jQhALI4ujg Poetry to Programming: https://youtu.be/wnHHzBY1SPQ Lambda Calculus: https://youtu.be/eis11j_iGMs Haskell: https://youtu.be/LnX3B9oaKzw http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer

How are images represented in a computer? Image analyst & Research Fellow Mike Pound gives us a snapshot. (First in a series on computer vision) Digital Image Capture: COMING SOON Universe of Triangles: http://youtu.be/KdyvizaygyY?list=PLzH6n4zXuckrPkEUK5iMQrQyvj9Z6WCrm Math & Movies – Numberphile: http://youtu.be/mX0NB9IyYpU Real Life Holodeck: http://youtu.be/7ZPs7knvs7M http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by

The Busy Beaver game, pointless? Or a lesson in the problems of computability? – How do you decide if something can be computed or not? Professor Brailsford’s code and further reading: http://bit.ly/busybeaver Turing Machine Primer: http://youtu.be/DILF8usqp7M Busy Beaver Code: http://youtu.be/ZiTeuZSDB0U Ackermann Follow Up: http://youtu.be/uNACwX-O5lk Original ‘Ackermann’ Film (Most Difficult Program to Compute): http://youtu.be/i7sm9dzFtEI http://www.facebook.com/computerphile Tweets

The powers of two and the algorithm that helps them correct errors. Professor Brailsford explains how to fix those one-bit blips. EXTRA BITS: https://youtu.be/e_JuNuJnvjI More about these codes in this video – Multiple Dimension Error Correction: A* Search Algorithm: https://youtu.be/ySN5Wnu88nE http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science

What’s inside the case of this 40yr old Altair? Jason from the Centre for Computing History opens up this early machine to find some surprising changes. Main Altair Film: https://youtu.be/6LYRgrqJgDc Most Difficult Program: https://youtu.be/i7sm9dzFtEI Pushing the Atari Limits: https://youtu.be/3OdtfsXOkEY Arduino Hardware: https://youtu.be/b4z1zkmo1BE Centre for Computing History: http://www.bit.ly/C_ComputerMuseum http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed

A look at why (under certain circumstances) JIT Compilers can be so much faster. Dr Laurence Tratt of KCL takes us through the details. More about Laurie: https://bit.ly/C_LaurenceTratt 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

Extracting a secret key by simply watching the flickering of an LED? Sounds implausible but that’s what we’re discussing with Dr Mike Pound! Author’s page on the attack: Video-Based Cryptanalysis (nassiben.com) Paper: https://bit.ly/C_PowerLED 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

Deep Learning continued – the Encoder-Decoder network – Dr Mike Pound. For a background on CNNs it’s worth watching this first: https://youtu.be/py5byOOHZM8 Google Deep Dream https://www.youtube.com/watch?v=BsSmBPmPeYQ Password Cracking: https://www.youtube.com/watch?v=7U-RbOKanYs Deep Learning & CNNs: https://youtu.be/TJlAxW-2nmI 3D from Selfie: https://youtu.be/JtK4cTLlUko Papers included in this Computerphile: http://bit.ly/C_FaceAlignment http://bit.ly/C_Landmarks http://bit.ly/C_AaronLongForm FCNs, and in a sense encoder decoder networks were

If you pick the wrong prime numbers, cracking RSA becomes a cinch. Dr Mike Pound explains the findings of researcher Hanno Böck ARS Technica Article: https://bit.ly/C_BReakingRSa_Article Hanno’s Blog: https://bit.ly/C_HannoRSA 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

Plausible text generation has been around for a couple of years, but how does it work – and what’s next? Rob Miles on Language Models and Transformers. More from Rob Miles: http://bit.ly/Rob_Miles_YouTube AI YouTube Comments: https://youtu.be/XyMdpcAPnZc Thanks to Nottingham Hackspace for providing the filming location: http://bit.ly/notthack https://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and

Tournament selection, roulette selection, mutation, crossover – all processes used in genetic algorithms. Dr Alex Turner explains using the Knapsack Problem. 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

We rely on Chip & PIN machines to pay for things in a safe way, so how are they being compromised? Ross Anderson is Professor of Security Engineering at the Computer Laboratory, University of Cambridge. Man in the Middle Attacks: https://youtu.be/-enHfpHMBo4 AI Worst Case Scenario – Deadly Truth of AI: https://youtu.be/tcdVC4e6EV4 The Problem with JPEG:

Recursion can be tricky to grasp. Professor Thorsten Altenkirch uses Python to demonstrate an example taken from his latest book. More on recursion: https://www.youtube.com/playlist?list=PLzH6n4zXuckrnXQ-5AfWUdnCzZOQgft1B EXTRA BITS: https://youtu.be/c9IH8DHDI4M Thorsten & Isaac’s Python programming book: https://bit.ly/2p3r5IT 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

Peforming operations in parallel on big data. Rebecca Tickle explains MapReduce. 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

Just how did the team at Bletchley Park tackle the problem of decoding Enigma? In Part Two of our series on “The Real” Imitation Game, Professor Brailsford explains how they did it. Part One of this series: Turing’s Enigma Problem: http://youtu.be/d2NWPG2gB_A Professor Brailsford’s notes: http://bit.ly/enigmapart2 Numberphile on Enigma: http://youtu.be/G2_Q9FoD-oQ History of Undecidability: http://www.youtube.com/playlist?list=PLzH6n4zXuckpIQPv8hiHpJkSyv0fmXEYr Mainframes and

Just what’s going on when your email provider wants to send you a text message? Dr Mike Pound talks about multi-factor authentication. Password Cracking: https://youtu.be/7U-RbOKanYs The End of Time (Unix Time) – Numberphile: https://youtu.be/QJQ691PTKsA 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

Arduinos are used extensively in hobbyist electronics and hacker culture, but what is an arduino & how can you use them? Joe explains how they’re used in both hobby projects and space programmes…. Raspberry Pi Hardware: http://www.youtube.com/watch?v=sx2HjuZBuo0 Texting Cabbage with a Recorder: http://youtu.be/YkPrUkYKy8I http://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean

Why do we have 8 bits in a byte? Professor Brailsford on the origins of the humble byte. Why Use Binary?: https://youtu.be/thrx3SBEpL8 Babbage’s Puzzle: https://youtu.be/2qzjBmK0_20 Initial Orders II: https://youtu.be/nc2q4OOK6K8 The Font Magicians: https://www.youtube.com/watch?v=jAdspOtgciQ Colossus and Bletchley Park: https://www.youtube.com/watch?v=9HH-asvLAj4 https://www.facebook.com/computerphile Tweets by computer_phile This video was filmed and edited by Sean Riley. Computer Science at the

Can there be a universal intermediate programming language? Sounds like Esperanto to us – Professor Brailsford has more. 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

Dr Mike Pound introduces a ten videos on data analysis: From 0-9. Full Data Analysis Learning Playlist here: https://www.youtube.com/playlist?list=PLzH6n4zXuckpfMu_4Ff8E7Z1behQks5ba This Learning Playlist was designed by Dr Mercedes Torres-Torres & Dr Michael Pound of the University of Nottingham Computer Science Department. Find out more about Computer Science at Nottingham here: https://bit.ly/2IqwtNg This series was made possible

$20 off your 1st purchase at http://www.littlebits.com use the code “COMPUTERPHILE” After the deadly stamp collector, what if we can’t create something so powerful? But if we design an AI that’s better at AI design than us? Robert Miles continues his discussion on AI. The Problem with JPEG: https://youtu.be/yBX8GFqt6GA Computer That Changed Everything: https://youtu.be/6LYRgrqJgDc Artificial

Sponsored by Wix Code: Check them out here: http://wix.com/go/computerphile A safe place to try out AI algorithms, gridworlds are a standardised testing ground. Rob Miles takes us through AI safety, gridworld style. EXTRA BITS: https://youtu.be/py5VRagG6t8 Gridworld Paper: https://bit.ly/2ryxhGt Gridworld Github: https://bit.ly/2KJE6xH More from Rob Miles: http://bit.ly/Rob_Miles_YouTube Thanks to Nottingham Hackspace for providing the filming location:

How does instant messaging encryption protect against attack? Dr Mike Pound on the double ratchet. Diffie Hellman Key Exchange Explained: https://youtu.be/NmM9HA2MQGI Signal Protocol: https://youtu.be/DXv1boalsDI Endianness Explained with an Egg: https://youtu.be/NcaiHcBvDR4 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

One of the first computers in the world, EDSAC is being rebuilt at the National Museum of Computing at Bletchley Park. Andrew Herbert takes us on a walk around inside the computer. Pouring Mercury into Liquid Nitrogen (slow motion): https://youtu.be/5I4rxfnCtxY Binary: Plusses & Minuses (Why We Use Two’s Complement): https://youtu.be/lKTsv6iVxV4 Deadly Truth of General AI:

Who cares about privacy? – Professor Derek McAuley chats about the various problems with privacy online. 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. See the full list of Brady’s video projects at:

$20 off your 1st purchase at www.LittleBits.com use the code “COMPUTERPHILE” The Barber Paradox: Professor Brailsford continues the history of undecidability. History of Undecidability Part1: http://youtu.be/nsZsd5qtbo4 Turing & The Halting Problem: http://youtu.be/macM_MtS_w4 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

More information on the background of Printing and Typesetting to complement “The Great 202 Jailbreak” film which can be seen here: http://youtu.be/CVxeuwlvf8w 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. See the full