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  1. Programming language - Wikipedia

    The source code for a computer program in C. The gray lines are comments that explain the program to humans. When compiled and run, it will give the output "Hello, world!". A …

  2. Learn to Code — For Free — Coding Courses for Busy People

    Learn to Code — For FreefreeCodeCamp is a donor-supported tax-exempt 501 (c) (3) charitable organization (United States Federal Tax Identification Number: 82-0779546). Our mission: to …

  3. Introductory Programming - MIT OpenCourseWare

    This page will help you begin to learn programming and computer science, with some suggested introductory courses on OCW.

  4. Introduction to Programming - W3Schools

    W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, …

  5. Programiz: Learn to Code for Free

    Learn to code in Python, C/C++, Java, and other popular programming languages with our easy to follow tutorials, examples, online compiler and references.

  6. Learn to Code - for Free | Codecademy

    Learn the technical skills to get the job you want. Join over 50 million people choosing Codecademy to start a new career (or advance in their current one).

  7. Computer programming - JavaScript and the web - Khan Academy

    Learn how to program drawings, animations, and games using JavaScript and the Processing library, and explore the technologies behind the web as you design webpages with HTML and …