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Private Notes
This installment of the Bletchley Park series has a personal note for Professor Brailsford. He tells us what his dad did in the war.
Circuits that use latches to store data are a cornerstone of computing. Dr Steve Bagley shows us how to put one together.
Pixar researcher Tony DeRose spoke to Brady over on Numberphile, here's some extra stuff from their conversation not used in the main video.
Back to basics, at the start of a series on binary numbers Professor Brailsford tackles binary addition and just what is meant by an overflow.
This Supercomputer is doing some of the most difficult computations in the world, about things that are out of this world.
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.
The 4th dimension? A concept Marc ten Bosch has used to create an innovative game. We talk to him about developing Miegakure.
What 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.
It 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!
How are images represented in a computer? Image analyst & Research Fellow Mike Pound gives us a snapshot. (First in a series on computer vision)
How programmers found ways to push the hardware past its design limits. Dr "Heartbleed" Bagley shows us the rest of his Atari collection.
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.
Each BIT in memory doesn't have it's own unique wiring, they share connections - Dr 'Heartbleed' Bagley explains how we address them.
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.
Basic 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.
He 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
How 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, an essential logic operation, explained by Professor Brailsford. Continues our series on logic gates/operations.
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.
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.
Before floppy disks and the internet, computers transferred data to and from paper tape. Professor Brailsford explains.
What place do wearables have in AR? We ask AR Developer Matt Ramirez from Jisc.
What's a colourspace and why do we have different ones? It's horses for courses as Image Analyst Mike Pound explains.
Computer Memory Playlist: https://www.youtube.com/playlist?list=PLzH6n4zXuckoxFPyhsMOYMGqyZOeN2SDJ
Hobbyist hackers and programmers use Arduinos extensively - but what is an Arduino made of? James Fowkes from Nottingham Hackspace explains.
JPEG Isn't a file format. Image Analyst Mike Pound explains why not in our first in a series about how JPEG works.
30 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.
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.
Why can't artificial intelligence do what humans can? Rob Miles talks about generality in intelligence.
Video tour of the Centre for Computing History in Cambridge. Assistant Curator Jeremy shows us their vintage computers.
Data mining, why it's better than pure statistics. Professor Uwe Aickelin explains the basics of data mining.
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.
This is a re-upload of 'The Computer that Changed Everything' with the 'near ultrasonic' (16k) audio noise removed.
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.
DCT is the secret to JPEG's compression. Image Analyst Mike Pound explains how the compression works.
Colossus 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.
An 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.
Searching for the known unknown. Data mining & illegal immigration. Professor Uwe Aickelin explains how to mine data you don't even have.
Never use JPEG with text. But why? Image Analyst Mike Pound explains what goes wrong when JPEG tries to compress text.
Clive 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.
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.
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.
If 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 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)
Hitler'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
The 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.
How do computers recognise human faces? Associate Professor Dr Michel Valstar explains how the computer discerns faces, features & our expressions.
How do you use mathematics to help design a computer's user interface? Use Fitts's Law; Dr Sarah Wiseman explains.
What computing power could businesses or educational establishments expect in the mid '60's? Jeremy Thackray demos the Elliott 903.
An 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.
An 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.
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.
Bell 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.
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.
Secret texts buried in a picture of your dog? Image Analyst Dr. Mike Pound explains the art of steganography in digital images.
When 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
Search 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" 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.
Email is an unwelcome distraction, so CS legend Don Knuth simply doesn't use it. He hasn't done since 1990. Brady asked him why.
The 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.
How faces are turned into points & shapes and recognised as features. Associate Professor Dr. Michel Valstar explains how pixels 'vote' for features.
We 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.
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 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.
Before and After - how a data centre looks before the clients move in. Spencer Lamb shows us around.
XOR encryption is flawed. Professor Brailsford explains the zig-zag method that can reveal the precious key stream.
How getting something completely wrong can actually help you out. Professor Uwe Aickelin explains anti-learning.
Google It" has passed into common language, but how does Google rank pages? Dr Max Wilson explains page rank.
BWK, 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.
Image 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.
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
Software 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.
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.
Big 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.
Face 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.
Lenovo sold thousands of computers all carrying the Superfish software. Tom Scott explains what a security nightmare this became.
How does digital audio work? Programmer, Producer and Professional Musician David Domminney Fowler takes us through the basics.
Just 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.
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.
Three or four laws to make robots and AI safe - should be simple right? Rob Miles on why these simple laws are so complicated.
Taking edges one step further with Hysteresis Thresholding - The Canny Operator explained by Image Analyst Dr Mike Pound
Just what is a pipeline in the computer science sense? We asked Computer Science guru Professor Brian Kernighan
DFB explains why three letter abbreviations are so common in computer science. Unix & Bell Labs have a lot to answer for! (Professor David F Brailsford)
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.
A Picture says a thousand words, but even more musical notes! - David Domminney Fowler wrote a program that turns images into music.
Shoot first, focus later: How does a 'light field' camera work? We asked Image Analyst Dr Mike Pound.
A $5 computer - where's the catch? Well, there doesn't seem to be one. Dr Steve "Heartbleed" Bagley explains the Raspberry Pi Zero.
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.
Digital 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.
Before each Computerphile interview we asked guests and regular contributors about their first computer.
A 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.
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.
A 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.
