About Us

About this project

This site is a free, organised library of programming and computer science notes. Every topic is broken into small, readable pages grouped by category and subcategory, so a subject can be followed from the first idea to the harder material without hunting around.

What you will find

• Language notes for Java, Python, C, C++ and JavaScript.
• Web development notes covering HTML, CSS and the browser.
• Core computer science: data structures, algorithms, DBMS, operating systems and networks.
• Interview preparation material and practice questions.

How to use the site

Browse by category, search for a topic, and bookmark anything you want to return to. Signed in readers can also keep private notes of their own and organise them into folders.