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A free, evolving tutorial on cryptography maintained since 1999. It covers basic cryptographic concepts, types of algorithms including secret key, public key and hash functions, trust models, and applied algorithms in action.
LearnCpp.com is a free website devoted to teaching programming in modern C++. Its lessons walk through the steps needed to write, compile and debug C++ programs. No prior programming experience is necessary, though programmers of all levels may benefit from the best practices, tips and insights. Chapters cover getting started, basics, functions, debugging, data types, and more.
CPU Land is an article explaining what happens when a program runs on a computer. It covers multiprocessing, system calls, memory management with hardware interrupts and how Linux loads executables.
SitePoint provides educational videos, lessons, tutorials, or self-learning resources.
A free platform for learning modern cryptography by solving interactive puzzles and challenges. Users earn points by solving challenges, finish categories to earn trophies and gain levels, and new challenges are added regularly.
SQLBolt provides a series of interactive lessons and exercises designed to help users learn SQL in the browser. Lessons cover SELECT queries, constraints, filtering and sorting, JOINs, expressions, aggregates, order of execution, and inserting, updating and deleting rows, as well as creating, altering and dropping tables. Additional topics include subqueries and unions.
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A free, evolving tutorial on cryptography maintained since 1999. It covers basic cryptographic concepts, types of algorithms including secret key, public key and hash functions, trust models, and applied algorithms in action.
LearnCpp.com is a free website devoted to teaching programming in modern C++. Its lessons walk through the steps needed to write, compile and debug C++ programs. No prior programming experience is necessary, though programmers of all levels may benefit from the best practices, tips and insights. Chapters cover getting started, basics, functions, debugging, data types, and more.
CPU Land is an article explaining what happens when a program runs on a computer. It covers multiprocessing, system calls, memory management with hardware interrupts and how Linux loads executables.
SitePoint provides educational videos, lessons, tutorials, or self-learning resources.
A free platform for learning modern cryptography by solving interactive puzzles and challenges. Users earn points by solving challenges, finish categories to earn trophies and gain levels, and new challenges are added regularly.
SQLBolt provides a series of interactive lessons and exercises designed to help users learn SQL in the browser. Lessons cover SELECT queries, constraints, filtering and sorting, JOINs, expressions, aggregates, order of execution, and inserting, updating and deleting rows, as well as creating, altering and dropping tables. Additional topics include subqueries and unions.
