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Nottingham Hackspace member Michael Erskine has built an arcade machine to run his favourite game from his teens - Defender.
Cookies are controversial and new laws governing them have been introduced in Europe.
Floppy disk drives make sweet music, well, tuneful noises anyway. You might have seen them on YouTube before, but how do they work? Now you can find out!
Featuring Alex Pinkney from the University of Nottingham's Department of Computer Science.
Just what is an algorithm? - Before Computerphile delves into complex computer theory, we define algorithms and how they are used in Computer Science.
Abstraction is at the heart of everything to do with computing. James Clewett takes us through the layers abstracting the pixels forming this text on screen from the electrons in the computer.
Email is part of the daily routine for many people, but how does a computer deal with email messages? Professor Tom Rodden explains how email is processed so quickly.
The Raspberry Pi made waves when it was announced, but what is it? How is it built and what can you do with it? Matt Lloyd, IoT engineer at Ciseco and member of Nottingham's Hackspace talks it through.
Just who chose Computer Science before it existed as an academic subject? Emeritus Professor David Brailsford talks about how he started as a computer scientist. To be continued in further videos....
The BBC Microcomputer was one of the first home computers. Physicist Richard Hill explains how it inspired him.
How well sorted is your algorithm? Choosing the right method to sort numbers has a huge effect on how quickly a computer can process a task. Alex Pinkney talks about two popular sorting algorithms and how they 'scale up.'
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.
Quick Sort is a popular sorting algorithm, but how does it work? Alex continues our exploration of sorting algorithms with a quick look at quick sort.
We rely on computers day-to-day, for most of us they are no longer just a luxury. What does it mean from a philosophical view-point; to live in the age of Hyper History?
Luciano Floridi is Professor of Philosophy and UNESCO Chair in Information and Computer Ethics at the University of Hertfordshire, and Fellow of St Cross College, Oxford.
What's the absolute minimum you can compress data to? - Entropy conjures up visions of chemistry and physics, but how does it apply to binary codes and computer science? Professor David Brailsford continues his discussion of compression.
Elite was one of the first computer games to use 3d wireframe graphics and procedurally generated environments. Physicist Richard Hill shows us the game and explains how it inspired him.
Surfing the web and Internet stacks.
See how a Pick and Place robot works to complete a circuit board at Ciseco. Matt Lloyd takes us on a tour to illustrate how they design and make components and add-ons for the Raspberry Pi.
No internet, no networking; just a screen and a keyboard, or a pile of cards to punch holes in; mainframes were a world apart from today's smartphones and integrated circuits. Professor Brailsford remembers the Unix revolution.
IP addresses explained - what do these mysterious numbers and dots mean and how are they used? Richard Mortier explains the idea of the addresses behind the internet protocol.
His career in games has stretched from the earliest home video games to the latest - now he wants to inspire youngsters to get involved and obtain the skills to have their own career in the video games industry. Ian Livingstone is Life President of Square Enix and Eidos.
Devising codes for different weather states is all well and good, but what if the weather strikes back? Electrical storms can distort codes and noisy lines can confuse things, Professor Brailsford shows us one way of building redundancy into the system.
The sights and sounds of sorting! - Alex takes inspiration from our BBC microcomputer film and combines BASIC programming with some popular sorting algorithms.
What if the Universe is just a computer simulation? What is fundamental particles are really just "bits"?
CERN is a famous centre for scientific research, but it's also where the WWW was "invented". More about CERN's computing power coming soon!!!
How did punch card systems work? Professor Brailsford delves further into the era of mainframe computing with this hands-on look at punch cards.
IPv4 ran out of space, so how are we still all looking at the internet? - NAT has the answer! - Richard Mortier explains how the IP address space was expanded upon.
There are different styles of programming, some quite closely resemble pure mathematics. Mathematician and Computer Scientist Laurence Day compares two of them.
Note: In the Java code the delimiters within the 'for' loop should be semi-colons, not commas. Apologies for the error.
The CERN computer grid processes the information from the world's most powerful particle accelerator. Brady gives us a tour of the heart of the operation: CERN's Tier 0.
What good is knowing you have a problem if you can't fix it? - Professor Brailsford explains Hamming Codes and how errors can not just be detected, but also corrected.
You, the Computerphile viewers sent us your code - Brady takes a first look at some of the things you sent us!
Deleting files may not mean they're gone. Even overwriting them isn't safe. Professor Derek McAuley explains.
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.
How are gesture controls turned into game commands? How can these gestures aid people in rehabilitation? Nottingham Trent University's Interactive Systems Research Group show us their work with wii and kinect technologies.
How far have we come with Artificial Intelligence? Are there intelligent machines, or have we changed the world to allow dumb machines to behave intelligently?
News stories surface every day about how National Security Agencies have broken encryption, but what is media 'hype' and what's the truth? - Richard Mortier explains.
The number of virtual machines has swelled due to cloud computing & changes to the X86 processor, but what are Virtual Machines and how do they run legacy software alongside cutting edge code? Derek McAuley explains.
Websites can still be hacked using SQL injection - Tom explains how sites written in PHP (and other languages too) can be vulnerable and have basic security issues.
CERN developed their 'Grid' before the world wide web took off. Maria and Andrzej explain how it does a lot more than just share the reams of data the Large Hadron Collider collects.
How do we derive the most compact codes for a situation? Huffman Trees can help. Professor Brailsford explains how computer scientists like their trees to be upside down.
JavaScript is dangerous! Why? How are websites vulnerable to it? Find out about bug-bounties from Tom Scott.
The Cloud is a term applied to seemingly anything internet related, but what is cloud computing and how is it different? Dr Taha Osman explains how cloud computing even powers pizza ordering portals.
Text compression methods such as LZ can reduce file sizes by up to 80%. Professor Brailsford explains the nuts and bolts of how it is done.
How many words can you type if you are restricted to a musical typewriter? HackSocNotts competed in a hack-athon and came up with this! Hackathons are endurance coding events which can lead to all sorts of strange hybrid ideas becoming reality.
Hashing Algorithms are used to ensure file authenticity, but how secure are they and why do they keep changing? Tom Scott hashes it out.
How does YouTube work and why do videos buffer? See more in the full description.
Security of users' passwords should be at the forefront of every web developer's mind. Tom takes us through the insecure ways in which some websites deal with passwords.
As two new games consoles are released on to the market - Ian talks about how gaming has instead been revolutionised by stealth - via smart-phones & tablets.
We see objects all the time and our brains decode the 3D shapes, but how do computers model these shapes and why break it all down to triangles?
If you don't secure your web forms, one mistaken click could be all it takes for your users to delete their own accounts. Tom Scott explains.
The Matrix" conjures visions of Keanu Reeves as Neo on the silver screen, but matrices have a very real use in manipulating 3D graphics. John Chapman explains the true power of the matrix.
Before laser-printers, high quality print-outs were the domain of typesetters, expensive and tightly controlled. In 1979 a Bell Labs team reverse engineered one in their summer vacation. Professor Brailsford has the details.
How do we go from 3D representations within a computer to pixels on a screen? John Chapman has the details!
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....
A web app that works out how many seconds ago something happened. How hard can coding that be? Tom Scott explains how time twists and turns like a twisty-turny thing. It's not to be trifled with!
