Computerphile

シーズン 2015

Videos all about computers and computer stuff. Sister channel of Numberphile.

Computerphile • シーズン 2015の視聴方法

93話

  • Enigma, TypeX and Dad
    第1話
    Enigma, TypeX and DadThis installment of the Bletchley Park series has a personal note for Professor Brailsford. He tells us what his dad did in the war.
  • Flip Flops, Latches & Memory Details
    第2話
    Flip Flops, Latches & Memory DetailsCircuits that use latches to store data are a cornerstone of computing. Dr Steve Bagley shows us how to put one together.
  • More from Numberphile's Pixar Video
    第3話
    More from Numberphile's Pixar VideoPixar researcher Tony DeRose spoke to Brady over on Numberphile, here's some extra stuff from their conversation not used in the main video.
  • Binary Addition & Overflow
    第4話
    Binary Addition & OverflowBack to basics, at the start of a series on binary numbers Professor Brailsford tackles binary addition and just what is meant by an overflow.
  • Supercomputer and the Milky Way
    第5話
    Supercomputer and the Milky WayThis Supercomputer is doing some of the most difficult computations in the world, about things that are out of this world.
  • Binary: Plusses & Minuses (Why We Use Two's Complement)
    第6話
    Binary: Plusses & Minuses (Why We Use Two's Complement)Negative Binary Numbers - you may have heard of 'signed' numbers, but do you know how they work? Professor Brailsford explains not just how, but why we use the systems we do.
  • Indie Games & the Fourth Dimension
    第7話
    Indie Games & the Fourth DimensionThe 4th dimension? A concept Marc ten Bosch has used to create an innovative game. We talk to him about developing Miegakure.
  • The Turing Test
    第8話
    The Turing TestWhat was The Imitation Game? It inspired the name for the recent Alan Turing's movie but just what was it? Professor Brailsford explains how Turing may have been having a joke on us.
  • Atari ST: Accidental Musical Workhorse
    第9話
    Atari ST: Accidental Musical WorkhorseIt became the music sequencing tool of choice for countless musicians, almost by chance. The Atari ST was launched 30yrs ago and Dr. Steve "Heartbleed" Bagley shows us his own extensive collection!
  • Digital Images
    第10話
    Digital ImagesHow are images represented in a computer? Image analyst & Research Fellow Mike Pound gives us a snapshot. (First in a series on computer vision)
  • Pushing the Atari Limits
    第11話
    Pushing the Atari LimitsHow programmers found ways to push the hardware past its design limits. Dr "Heartbleed" Bagley shows us the rest of his Atari collection.
  • Capturing Digital Images (The Bayer Filter)
    第12話
    Capturing Digital Images (The Bayer Filter)How do digital cameras turn light into the data that computers can handle? In this second part of our computer vision series, Image Analyst Mike Pound explains the Bayer Filter.
  • Addressing Memory (Pt1)
    第13話
    Addressing Memory (Pt1)Each BIT in memory doesn't have it's own unique wiring, they share connections - Dr 'Heartbleed' Bagley explains how we address them.
  • True Colour of 'The Dress' #thedress (colours in digital images)
    第14話
    True Colour of 'The Dress' #thedress (colours in digital images)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.
  • AND OR NOT - Logic Gates Explained
    第15話
    AND OR NOT - Logic Gates ExplainedBasic logic gates explained and all the different ways they can be drawn and represented. Professor Brailsford takes us through the AND, OR & NOT logical operations.
  • The Path Towards ARM & BBC B
    第16話
    The Path Towards ARM & BBC BHe was on the team that invented the ARM chip, the BBC Microcomputer and got into computing in the 1970's because he wanted to build his own flight simulator. In 2014 he was awarded the Lovelace medal & is the ICL Professor of Computer Engineering at The University of Manchester. Computerphile talks to Professor Steve Furber
  • 3D & Multiple Dimensions in Digital Images
    第17話
    3D & Multiple Dimensions in Digital ImagesHow computers represent more than 2 dimensions and how those dimensions can be used. Our series on digital images and computer vision continues with Image Analyst Mike Pound.
  • XOR & the Half Adder
    第18話
    XOR & the Half AdderXOR, an essential logic operation, explained by Professor Brailsford. Continues our series on logic gates/operations.
  • Augmented Reality (AR)
    第19話
    Augmented Reality (AR)Augmented Reality, also known as AR is finding its way into all of our mobile devices, is it a gimmick or a useful piece of technology? Matt Ramirez is a developer at Jisc, the charity championing digital tech in UK education and research.
  • Building the BBC Micro (The Beeb)
    第20話
    Building the BBC Micro (The Beeb)It inspired a generation of coders and was in 80% of UK schools. The BBC Micro was built by Acorn (CPU) as part of a computer literacy project. Professor Steve Furber was part of the team who designed it.
  • 5 Hole Paper Tape
    第21話
    5 Hole Paper TapeBefore floppy disks and the internet, computers transferred data to and from paper tape. Professor Brailsford explains.
  • Wearables and Augmented Reality
    第22話
    Wearables and Augmented RealityWhat place do wearables have in AR? We ask AR Developer Matt Ramirez from Jisc.
  • Colourspaces (JPEG Pt0)
    第23話
    Colourspaces (JPEG Pt0)What's a colourspace and why do we have different ones? It's horses for courses as Image Analyst Mike Pound explains.
  • Total Recall (Memory Addressing Pt2)
    第24話
    Total Recall (Memory Addressing Pt2)Computer Memory Playlist: https://www.youtube.com/playlist?list=PLzH6n4zXuckoxFPyhsMOYMGqyZOeN2SDJ
  • Arduino Hardware
    第25話
    Arduino HardwareHobbyist hackers and programmers use Arduinos extensively - but what is an Arduino made of? James Fowkes from Nottingham Hackspace explains.
  • JPEG 'files' & Colour (JPEG Pt1)
    第26話
    JPEG 'files' & Colour (JPEG Pt1)JPEG Isn't a file format. Image Analyst Mike Pound explains why not in our first in a series about how JPEG works.
  • ARM Processor - Sowing the Seeds of Success
    第27話
    ARM Processor - Sowing the Seeds of Success30 years ago, Acorn Computers switched on their first ever processor, the Acorn RISC Machine, or ARM. Now, they power 95% of smartphones & 12 billion ARM chips shipped last year. Professor Steve Furber (University of Manchester) speaks about how he and Sophie Wilson started the project.
  • EDSAC Rebuild (Cambridge University's 1st Computer)
    第28話
    EDSAC Rebuild (Cambridge University's 1st Computer)Scrapped to make space for its successor, EDSAC is now being painstakingly rebuilt at The National Museum of Computing (TNMoC). 5 years in, Andrew Herbert tells about this remarkable machine.
  • Holy Grail of AI (Artificial Intelligence)
    第29話
    Holy Grail of AI (Artificial Intelligence)Why can't artificial intelligence do what humans can? Rob Miles talks about generality in intelligence.
  • Computing Aladdin's Cave
    第30話
    Computing Aladdin's CaveVideo tour of the Centre for Computing History in Cambridge. Assistant Curator Jeremy shows us their vintage computers.
  • Nuggets of Data Gold
    第31話
    Nuggets of Data GoldData mining, why it's better than pure statistics. Professor Uwe Aickelin explains the basics of data mining.
  • The Computer That Changed Everything (Altair 8800)
    第32話
    The Computer That Changed Everything (Altair 8800)Arguably the first personal computer, the Altair 8800 is the machine that inspired Steve Jobs and Bill Gates. Jason Fitzpatrick from the Centre for Computing History explains.
  • Computer That Changed Everything (Altair 8800) - AUDIO FIX
    第33話
    Computer That Changed Everything (Altair 8800) - AUDIO FIXThis is a re-upload of 'The Computer that Changed Everything' with the 'near ultrasonic' (16k) audio noise removed.
  • IT Crowd Altair - Lifting the Lid
    第34話
    IT Crowd Altair - Lifting the LidWhat'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.
  • JPEG DCT, Discrete Cosine Transform (JPEG Pt2)
    第35話
    JPEG DCT, Discrete Cosine Transform (JPEG Pt2)DCT is the secret to JPEG's compression. Image Analyst Mike Pound explains how the compression works.
  • Colossus & Bletchley Park
    第36話
    Colossus & Bletchley ParkColossus was one of the very first electronic, special purpose, computers and it was created almost two years earlier than the better known ENIAC. We visit Bletchley Park, home of the code breakers, and TNMoC, The National Museum of Computing. Professor Brailsford shows us the Colossus replica.
  • Apple's $200,000 Computer
    第37話
    Apple's $200,000 ComputerAn Apple I was discovered in a pile of electronics. It sold for $200,000, but why so valuable? Dr Steve Bagley talks about this seminal machine.
  • Illegal Immigration & the Known Unknowns
    第38話
    Illegal Immigration & the Known UnknownsSearching for the known unknown. Data mining & illegal immigration. Professor Uwe Aickelin explains how to mine data you don't even have.
  • The Problem with JPEG
    第39話
    The Problem with JPEGNever use JPEG with text. But why? Image Analyst Mike Pound explains what goes wrong when JPEG tries to compress text.
  • People's Computer: Sinclair ZX81
    第40話
    People's Computer: Sinclair ZX81Clive Sinclair had a vision, an elegant, affordable computer. Sold as Timex 1000 in the US, the ZX81 was cheap and cheerful; for many programmers, their first rung on the ladder of computing.
  • Deadly Truth of General AI?
    第41話
    Deadly Truth of General AI?The danger of assuming general artificial intelligence will be the same as human intelligence. Rob Miles explains with a simple example: The deadly stamp collector.
  • Inside the Computer (EDSAC)
    第42話
    Inside the Computer (EDSAC)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.
  • Why ARM Owes Apple
    第43話
    Why ARM Owes AppleIf not for Apple, the company making ARM processors might never have existed and ARM could have disappeared with Acorn. Professor Steve Furber explains why.
  • Arduino Programs & Sketches
    第44話
    Arduino Programs & SketchesArduino devices are well known amongst hobbyists, but how do you get them to work? James Fowkes takes us through programming a 'sketch' (Arduino-speak for a program)
  • Fishy Codes: Bletchley's Other Secret
    第45話
    Fishy Codes: Bletchley's Other SecretHitler's High Command didn't use Enigma, they used a faster system called Lorenz, but when Allied forces first encountered it, they had no idea what it was and code-named it 'Tunny' (Tuna). Professor Brailsford explains why this relates to the early days of Computer Science
  • How GCHQ Classifies Computer Security
    第46話
    How GCHQ Classifies Computer SecurityThe UK's Government Communications Headquarters deal in classified material, but how to decide if a computer is secure? - GCHQ asked Professor Uwe Aickelin and his team to investigate a means of scoring computer systems.
  • Smile Detection
    第47話
    Smile DetectionHow do computers recognise human faces? Associate Professor Dr Michel Valstar explains how the computer discerns faces, features & our expressions.
  • Mouse Pointers & Fitts's Law
    第48話
    Mouse Pointers & Fitts's LawHow do you use mathematics to help design a computer's user interface? Use Fitts's Law; Dr Sarah Wiseman explains.
  • 1966 Computing Power (Elliott 903)
    第49話
    1966 Computing Power (Elliott 903)What computing power could businesses or educational establishments expect in the mid '60's? Jeremy Thackray demos the Elliott 903.
  • Captain Buzz: Smartphone Pilot
    第50話
    Captain Buzz: Smartphone PilotAn app that turns your phone into a pilot? Researchers at the University of Cambridge Computer Lab have built 'Captain Buzz' - Senior Research Associate Ramsey Faragher explains.
  • Captain Buzz pt2: Smart Watches and Latency
    第51話
    Captain Buzz pt2: Smart Watches and LatencyAn app that lets your phone fly which you can control from a smart watch. Researchers at the University of Cambridge Computer Lab have built 'Captain Buzz' - Olly Chick explains how they dealt with the latency issues raised in part 1.
  • AI Self Improvement
    第52話
    AI Self ImprovementAfter 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 Factory of Ideas: Working at Bell Labs
    第53話
    The Factory of Ideas: Working at Bell LabsBell Labs pioneered some of the most important inventions of the 20th century, what was it like to be part of that? Professor Brian Kernighan was there.
  • Could We Ban Encryption?
    第54話
    Could We Ban Encryption?Secret services want to read people's communications, politicians talk about terrorists, but what's the reality of banning encryption? Ross Anderson, Professor of Security Engineering at the Computer Laboratory, University of Cambridge explains how history repeats itself.
  • Secrets Hidden in Images (Steganography)
    第55話
    Secrets Hidden in Images (Steganography)Secret texts buried in a picture of your dog? Image Analyst Dr. Mike Pound explains the art of steganography in digital images.
  • Wobbly RAM & ZX81 Drawbacks
    第56話
    Wobbly RAM & ZX81 DrawbacksWhen your computer crashes and you lose everything it's annoying at best - What if you could fix it with blu tack? Jason Fitzpatrick from The Centre for Computing History on drawbacks of the Sinclair ZX81
  • How Search Engines Treat Data
    第57話
    How Search Engines Treat DataSearch Engines are a bit like the Public Library - You wouldn't wander around hoping to find the book you want, there's a system in place. Data is the same - Dr. Max Wilson Explains.
  • "C" Programming Language: Brian Kernighan
    第58話
    "C" Programming Language: Brian KernighanC" is one of the most widely used programming languages of all time. Prof Brian Kernighan wrote the book on "C", well, co-wrote it - on a visit to the University of Nottingham we asked him how it came about.
  • Why Don Knuth Doesn't Use Email
    第59話
    Why Don Knuth Doesn't Use EmailEmail is an unwelcome distraction, so CS legend Don Knuth simply doesn't use it. He hasn't done since 1990. Brady asked him why.
  • Silicon Brain: 1,000,000 ARM cores
    第60話
    Silicon Brain: 1,000,000 ARM coresThe Human Brain Project is behind this attempt to build a million core brain simulator. Professor Steve Furber of the University of Manchester & one of the pioneers behind the original ARM chip, takes us through the SpiNNaker Project.
  • Geometric Face Recognition
    第61話
    Geometric Face RecognitionHow faces are turned into points & shapes and recognised as features. Associate Professor Dr. Michel Valstar explains how pixels 'vote' for features.
  • Machine Learning Methods
    第62話
    Machine Learning MethodsWe haven't got time to label things, so can we let the computers work it out for themselves? Professor Uwe Aickelin explains supervised and un-supervised methods of machine learning.
  • The Singularity & Friendly AI?
    第63話
    The Singularity & Friendly AI?What is the singularity and will it ever happen? Dr Sean Holden of the University of Cambridge explains just how difficult Human Level AI is.
  • Inside a Data Centre
    第64話
    Inside a Data CentreInside one of the mysterious buildings that holds petabytes of data and crunches big numbers. Spencer Lamb shows us around a purpose built data centre in Slough in the UK, used by an organisation called Jisc/Janet which helps connect academic institutions together.
  • Empty Data Centre
    第65話
    Empty Data CentreBefore and After - how a data centre looks before the clients move in. Spencer Lamb shows us around.
  • Zig Zag Decryption
    第66話
    Zig Zag DecryptionXOR encryption is flawed. Professor Brailsford explains the zig-zag method that can reveal the precious key stream.
  • Anti-Learning (So Bad, it's Good)
    第67話
    Anti-Learning (So Bad, it's Good)How getting something completely wrong can actually help you out. Professor Uwe Aickelin explains anti-learning.
  • Page Ranking and Search Engines
    第68話
    Page Ranking and Search EnginesGoogle It" has passed into common language, but how does Google rank pages? Dr Max Wilson explains page rank.
  • UNIX Special: Profs Kernighan & Brailsford
    第69話
    UNIX Special: Profs Kernighan & BrailsfordBWK, Professor Brian Kernighan visited Nottingham, so Professor Brailsford couldn't resist an 'on-camera' chat about Unix, Bell Labs and other aspects of Brian's glittering career.
  • How Blurs & Filters Work
    第70話
    How Blurs & Filters WorkImage filters make most people think of Instagram or Camera Phone apps, but what's really going on at pixel level? Image Analyst Dr Mike Pound explains some of the most common filters.
  • Why Do We Need IP Addresses?
    第71話
    Why Do We Need IP Addresses?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
  • The Trouble with Missing Data
    第72話
    The Trouble with Missing DataSoftware doesn't deal well with missing data, so what can be done about it? Professor Uwe Aickelin talks about whether we need to replace it.
  • Chip & PIN Fraud Explained
    第73話
    Chip & PIN Fraud ExplainedWe 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.
  • Connecting Universities
    第74話
    Connecting UniversitiesBig data research needs high performance computing and fast networks but so do thousands of students watching Netflix. Jisc run Janet, the network that connects academia in the UK. Jeremy Sharp, Jisc's Director of Strategic Technologies takes us through their data centre installation.
  • Faces & the Local Binary Pattern
    第75話
    Faces & the Local Binary PatternFace detection isn't just about geometry. Associate Professor Dr Michel Valstar explains how Local Binary Patterns can be used to detect the edges in our features.
  • Man in the Middle Attacks & Superfish
    第76話
    Man in the Middle Attacks & SuperfishLenovo sold thousands of computers all carrying the Superfish software. Tom Scott explains what a security nightmare this became.
  • How Digital Audio Works
    第77話
    How Digital Audio WorksHow does digital audio work? Programmer, Producer and Professional Musician David Domminney Fowler takes us through the basics.
  • Consensus & Organising Coffee
    第78話
    Consensus & Organising CoffeeJust like humans organising to meet for coffee, computers need ways of organising themselves. Heidi Howard, of the System Research Group at University of Cambridge explains the basics.
  • Finding the Edges (Sobel Operator)
    第79話
    Finding the Edges (Sobel Operator)Our eyes can spot edges with no problems, but how do computers determine what's an edge and what's not? Image Analyst Dr Mike Pound explains the Sobel Edge detector.
  • Why Asimov's Laws of Robotics Don't Work
    第80話
    Why Asimov's Laws of Robotics Don't WorkThree or four laws to make robots and AI safe - should be simple right? Rob Miles on why these simple laws are so complicated.
  • Canny Edge Detector
    第81話
    Canny Edge DetectorTaking edges one step further with Hysteresis Thresholding - The Canny Operator explained by Image Analyst Dr Mike Pound
  • Unix Pipeline (Brian Kernighan)
    第82話
    Unix Pipeline (Brian Kernighan)Just what is a pipeline in the computer science sense? We asked Computer Science guru Professor Brian Kernighan
  • TLU Three Letter Username Obsession
    第83話
    TLU Three Letter Username ObsessionDFB explains why three letter abbreviations are so common in computer science. Unix & Bell Labs have a lot to answer for! (Professor David F Brailsford)
  • Why do CPUs Need Caches?
    第84話
    Why do CPUs Need Caches?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.
  • Pixel Noise (Music from Images)
    第85話
    Pixel Noise (Music from Images)A Picture says a thousand words, but even more musical notes! - David Domminney Fowler wrote a program that turns images into music.
  • Light-field Camera
    第86話
    Light-field CameraShoot first, focus later: How does a 'light field' camera work? We asked Image Analyst Dr Mike Pound.
  • Raspberry Pi Zero - the $5 Computer
    第87話
    Raspberry Pi Zero - the $5 ComputerA $5 computer - where's the catch? Well, there doesn't seem to be one. Dr Steve "Heartbleed" Bagley explains the Raspberry Pi Zero.
  • Why Use Binary?
    第88話
    Why Use Binary?Surely decimal numbers are easier to understand than binary? So why don't computers use them? Professor Brailsford explains the relationships between binary, power and simplicity.
  • How Bitcoin Works
    第89話
    How Bitcoin WorksDigital currency, how does it work, what's a data miner and will Bitcoin last? We asked Professor Ross Anderson of the University of Cambridge Computer Laboratory.
  • What Was Your 1st Computer?
    第90話
    What Was Your 1st Computer?Before each Computerphile interview we asked guests and regular contributors about their first computer.
  • Industrial Light-field Magic
    第91話
    Industrial Light-field MagicA camera that uses a micro lens array to create a depth map. Dr Mike Pound explains a more expensive type of light-field camera used in industry.
  • CPU vs GPU (What's the Difference?)
    第92話
    CPU vs GPU (What's the Difference?)What does a GPU do differently to a CPU and why don't we use them for everything? First of a series from Jem Davies, VP of Technology at ARM.
  • Search Engine Relevance
    第93話
    Search Engine RelevanceA search engine can return thousands of web pages, but how does it know whether they are relevant or not? First step is how to measure relevance, as Dr Max Wilson explains.

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