Free Software :: Computer Science

Mathmatics, Data Structures & Algorithms

• PlanetMath (Collaboratively build mathmatics encyclopedia initiative. License: GFDL)
• Data Structures & Algorithms Documentation (from Software Development section)
• MIT CS lectures (Video lectures about the "Structure and Interpretation of Computer Programs". License: Creative Commons Attribution-ShareAlike 1.0)
• Floating Point representation in computers (IEEE Standard 754)
• GSL (GNU Scientific Library. A numerical library with a C and C++ API, which currently provides more than a 1000 mathematical functions.) (cvs) (manual) (ml)
• Tina (Algorithm development libraries in C)
• Ginac (Mathmatical engine to help with the creation of integrated systems that embed symbolic manipulations, it is to be used with the C++ programming language)
• SortDemo (Tool to visualize various types of sorting algorithms)
• Beagle (C++ based Evolutionary Computation framework) (ml)

Synchronous Logic/Chip Design

• MMIX (Theoretical computer invented by Donald Knuth. Features: RISC architecture, 64-bit wordsize, 256 general-purpose registers, about 12 OP-code categories)

Asynchronous Logic/Chip Design

• Asynchronous Chips (Introduction article from Scientific American)
• Mancheser University documentation
• Caltech documentation

Compiler Design

• VCG (Visualization of Compiler Graphs)
• Ragel (Tool which compiles finite state machines from 'regular' languages into runnable C/C++ code)
• Meta-level Compilation (Project which aims to create domain- and application-specific compiler extensions to check, optimize, and transform sourcecode. No code released yet.)

Programming Languages

• Programming Languages (from the Programming Languages section)

Distributed Computing

• Global Grid Forum (Community-driven set of working groups to help improve peer-to-peer based distributed computing)

Quantum Computing

• Qubit (Quantum computing research portal)
• "The Quantum Computer" (Introduction into quantum computing)

Digital Encryption Schemes

• "The Crypto Gardening Guide and Planting Tips" (Peter Gutmann of Crypto++ fame outlines some real-world considerations for implementing cryptography systems)
• RSA (Popular implementation of a public key encryption algorithm. Developed by Ronald Rivest, Adi Shamir and Leonard Adelman.)
• DES (Fixed-length key, 64 bit block cipher. Developed by IBM and the NSA.)
• BlowFish (Variable-length key, 64 bit block cipher. Touted as a good replacement for DES.)
• AES (Advanced Encryption Standard. AES uses the Rijndael symmetric encryption algorithm and has received US government approval.)

Artificial Intelligence

• AI Foundry (Portal for free software projects related to the field of Artificial_Intelligence) (ml)
• Text Synthesis & Recognition Tools (from the Text Management section)
• Speech Synthesis & Recognition Tools (from the Multimedia section)
• Video Synthesis & Recognition Tools (from the Multimedia section)
• Optical Character Recognition Tools (from the Multimedia section)
• Image Synthesis & Recognition Tools (from the Multimedia section)
• FANN ("Fast Artificial Neural Network Library") (cvs)