Practice by subject
Each subject opens into topic-wise MCQ sets. Pick a topic, answer the questions, and get your score immediately — with every attempt marked right or wrong.
See the working, not just the answer
Concepts stick when you watch them happen. These pages animate the algorithm or walk the conversion one symbol at a time.
Sorting, step by step
Watch a sorting algorithm work through an array one pass at a time — every comparison and swap shown as it happens.
Expression conversion
Infix, prefix, and postfix — convert between all three notations and follow the stack at every step.
More tools
A growing shelf of utilities and practice pages built for the classroom and beyond.
Three steps, no setup
No account, no installs — every page runs entirely in your browser.
Choose a subject and topic
Eight core subjects, each split into focused topics — from pointers in C to page replacement in operating systems.
Answer the MCQs
Work through the set at your own pace. Questions follow the pattern of SLST and other computer science examinations.
Get instant feedback
Your score appears the moment you finish, with each answer marked — so you know exactly what to revise next.