https://youtube.com/channel/UC9-y-6csu5WGm29I7JiwpnA Videos about computers & computer stuff. Supported by Jane Street - https://jane-st.co/computerphile Sister channel of Numberphile. TV & Film Podsync generator (support us at https://github.com/mxpv/podsync) en-us Fri, 17 Jul 2026 04:32:57 +0000 Fri, 10 Apr 2009 21:59:58 +0000 https://yt3.ggpht.com/ebHMyRfch3u2UTZN1WQJDp9J5U7o38T_WnGkd2QhAIQwBgvozdaOCOnfDMtngtoHWutJvLl4i0c=s800-c-k-c0x00ffffff-no-rj https://youtube.com/channel/UC9-y-6csu5WGm29I7JiwpnA Computerphile Computerphile no 2Q6OvYjOJi0 https://youtube.com/watch?v=2Q6OvYjOJi0 Something odd was going on with the signals broadcast by the GPS satellites. Steven Murdoch of University College London explains how he used statistical analysis to work out what might be going on. To read more about Steven's findings: https://sjmurdoch.github.io/gps-special-messages/ Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 16 Jul 2026 14:32:23 +0000 Computerphile GPS Hidden Messages - Computerphile 19:27 no 1 k_kyepATqB8 https://youtube.com/watch?v=k_kyepATqB8 We brought a computer scientist and a physicist together to talk about Shor's algorithm - a famous factorisation algorithm for that can break some currently used encryption techniques if implemented in the quantum realm. Phil's accompanying blog post: https://muircheartblog.wpcomstaging.com/2026/05/26/quantum-computing-one-universe-is-more-than-enough/ Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 09 Jul 2026 13:57:10 +0000 Computerphile Shor's Algorithm for Quantum Computing - Computerphile 38:59 no 2 -0HRzXk8vlk https://youtube.com/watch?v=-0HRzXk8vlk After changes to pricing structures for LLM powered code assistants, Mike looks at how a seemingly simple task can burn through tokens when an agent 'looks after it' for you. Published with three potential titles on a YouTube test: Extreme Token Use of Agentic AI - Computerphile Why AI Tokens are so Expensive - Computerphile What is a token and why does it cost so much? - Computerphile Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 02 Jul 2026 14:26:37 +0000 Computerphile Extreme Token Use of Agentic AI - Computerphile 25:22 no 3 0GQ2RP-25gM https://youtube.com/watch?v=0GQ2RP-25gM Clever Hans was a horse that could do maths, or was it using some other trick? Is AI music classification working like a 'Clever Hans?' David Kelly is based at Kings College London. His paper is in preprint here: https://arxiv.org/pdf/2601.16675 Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 25 Jun 2026 14:45:11 +0000 Computerphile Why AI is like a (Clever Hans) Horse - Computerphile 18:43 no 4 2jJeSgO_MGo https://youtube.com/watch?v=2jJeSgO_MGo With the UK planning to follow Australia in a ban on social media for under 16s, we ask how it might work? Dr Mike Pound is an Associate Professor at the University of Nottingham. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Tue, 16 Jun 2026 14:30:04 +0000 Computerphile Is it Possible to Block Childrens' Access to Social Media? - Computerphile 18:39 no 5 nKVML4YaBqs https://youtube.com/watch?v=nKVML4YaBqs Network Basics story continues with the second part of the TCP segment. Richard G Clegg is based at Queen Mary University London. Richard's Code: https://github.com/richardclegg/computerphile_demos/ RFC 5681 https://datatracker.ietf.org/doc/html/rfc5681 Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Mon, 15 Jun 2026 14:33:58 +0000 Computerphile TCP b : Additive Increase Multiplicative Decrease & 'Slow Start' - Computerphile 26:08 no 6 IADOV8UZO34 https://youtube.com/watch?v=IADOV8UZO34 Continuing the deep dive down the network stack, Richard begins the story of TCP. Richard G Clegg is based at Queen Mary University London. Next in the playlist: https://youtu.be/nKVML4YaBqs RFC793 https://datatracker.ietf.org/doc/html/rfc793 RFC 9293 https://datatracker.ietf.org/doc/html/rfc9293 Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Sat, 13 Jun 2026 13:00:35 +0000 Computerphile TCP a : Ensuring Your Data Gets There & in the Right Order! - Computerphile 17:26 no 7 kaD54VXxGrI https://youtube.com/watch?v=kaD54VXxGrI Fuzzing is a technique to find programming bugs by testing with random inputs - but there are smarter ways to go about it! Professor Alastair F Donaldson leads the Multicore Programming research group at Imperial College. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 04 Jun 2026 13:30:15 +0000 Computerphile Fuzzing Programs to Find Bugs - Computerphile 19:14 no 8 SJocPm2E8eQ https://youtube.com/watch?v=SJocPm2E8eQ Knuth talked about "Literate Programming" over forty years ago, but what does it mean to have code that a developer and a client can agree on? Dr Robert Chatley of Imperial College London demonstrates how it might work. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Fri, 29 May 2026 13:30:12 +0000 Computerphile Human Readable Code - Computerphile 22:51 no 9 -14t6_yu-7w https://youtube.com/watch?v=-14t6_yu-7w Long division can be arduous - division in general is something that even computer processors try to avoid with a simple technique. Matt Godbolt demos it and then shows how a simple C program can cause a compiler to employ this trick. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Tue, 26 May 2026 13:05:22 +0000 Computerphile The "Trick" that Compilers Use for Long Division - Computerphile 14:37 no 10 E3hvLz717zM https://youtube.com/watch?v=E3hvLz717zM Learn more and apply to Jane Street’s WiSE program in New York, London or Hong Kong: https://jane-st.co/Computerphile-WiSE-2026 (episode sponsor) Professor Azalea Raad leads the Veritas Lab at Imperial College London... More information about this video in the full description below. This video is about how Weak Memory Concurrency can cause multiple threads to do unexpected things! Azalea Raad: https://profiles.imperial.ac.uk/azalea.raad Learn more and apply to Jane Street’s WiSE program in New York, London or Hong Kong: https://jane-st.co/Computerphile-WiSE-2026 Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Mon, 18 May 2026 13:30:20 +0000 Computerphile Why Multi-Threaded Code Can Sometimes Misbehave (Weak Memory Concurrency) - Computerphile 16:25 no 11 7WEewUVQabU https://youtube.com/watch?v=7WEewUVQabU The PDP1 was a groundbreaking computer from the 1950's - but where does it fit into computing history and how would you use it? Thanks to Angelo Papenhoff from "Obsolescence Guaranteed" for demonstrating the PiDP1 emulator! Obsolescence Guaranteed: https://obsolescence.dev/ Minskytron online: https://www.masswerk.at/minskytron/ Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile Code for the circle: 00001 / circle 00002 100/ 000100 200113 00003 go, lac x 000101 761000 00004 lup, cma 000102 675017 00005 sar 4s 000103 400114 00006 add y 000104 240114 00007 dac y 000105 220114 00008 lio y 000106 675017 00009 sar 4s 000107 400113 00010 add x 000110 240113 00011 dac x 000111 730007 00012 dpy 000112 600101 00013 jmp lup 00014 000113 200000 00015 x, 200000 000114 000000 00016 y, 0 00017 00018 start go This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Wed, 06 May 2026 14:45:00 +0000 Computerphile Hacking on the PDP1 Raspberry Pi Emulator - Computerphile 24:19 no 12 G1VgXqKZMZE https://youtube.com/watch?v=G1VgXqKZMZE When you're setting your hardware design out using automated tools is essential, but what if the tools themselves have bugs in them? John P Wickerson is based at Imperial College London. The paper that John's team wrote about the work: https://johnwickerson.github.io/papers/fuzzing_pnr.pdf An accessible blogpost John wrote about the work: https://johnwickerson.wordpress.com/2026/01/06/finding-bugs-in-fpga-place-and-route-tools/ Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Wed, 29 Apr 2026 13:00:28 +0000 Computerphile Finding Hardware Bugs - Computerphile 18:10 no 13 cYS57xJuRP8 https://youtube.com/watch?v=cYS57xJuRP8 B is the forerunner to C - but seemed lost - Angelo Papenhoff decided to change it and brought it back from the brink! Here he tries to recreate Brian Kernighan's original 'Hello World' with a few wrinkles! Angelo's B compiler is here: https://github.com/aap/b Angelo's emulators: https://github.com/aap/blincolnlights There's a type in the end of the video, it should of course read "Obsolescence" Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Fri, 17 Apr 2026 12:30:53 +0000 Computerphile Original Hello World in "B" Programming Language - Computerphile 9:09 no 14 x_pwyoLsvkw https://youtube.com/watch?v=x_pwyoLsvkw If you run out of headroom with your chosen sample rate, how do you avoid the problems of unwanted harmonics? - Dave Domminney Fowler explains how oversampling can help. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 09 Apr 2026 16:30:22 +0000 Computerphile Oversampling Data (Explained with Audio) - Computerphile 14:35 no 15 _MoRcYLN-7U https://youtube.com/watch?v=_MoRcYLN-7U Prepping for Post-Quantum, Mike Pound explains why now! -- Try Jane Street’s neural net puzzle: https://jane-st.co/computerphile-neural-net-puzzle (channel sponsor) -- More links in full description below ↓↓↓ Computerphile is supported by Jane Street. Learn more about ML at Jane Street here: https://jane-st.co/Computerphile-JS-ML As we move toward a world where Quantum Computing can break certain cryptographic codes, a post-quantum period, things are changing in the world of cryptograhy. Dr Mike Pound is based at the University of Nottingham. Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com Thu, 02 Apr 2026 13:00:51 +0000 Computerphile Post Quantum Cryptography - Computerphile 13:27 no 16