Crosswords Mobile vs Prof. Sema

Quiz-friends behold: With the new free crosswords app, it will become hard to be bored! Our crosswords to go, wherever you go. Whether you're waiting for the next bus, taking a break or whatever else you're doing. Just grab your tablet or phone and crossword away! We've got something for every puzzle aficionado out there. From easy crossword puzzles for beginners to hard puzzles, which will get your head smoking in no time. You can easily zoom in to the crossword's fields and fill them out using your keyboard. And should you have guessed a word wrong the app won't keep it a secret. The app uses a Swedish-style grid. And should you get stuck, you can reveal the solution of a field. There are three difficulties: - Easy - Medium - Hard The puzzles are also available in different languages. At the moment we have: - German - English - Italian - French - Turkish - Spanish - Russian - Swedish - Polish With this app, you'll become a walking encyclopedia and even increase your chances in winning "Who Wants To Be A Millionaire"! ;-) Happy crosswording!

Stop memorizing concurrency diagrams. See them run. Prof. Sema is an interactive operating systems study tool for computer science students. You choose each thread's next operation, then watch shared memory, locks, queues, and blocked threads update live. MAKE THE BUG HAPPEN Try a common mistake on purpose. Create a race condition, block a thread, or build a deadlock. Prof. Sema shows exactly what changed and why. Undo the step and try a safer ordering. PRACTICE 7 CORE CONCEPTS • Race conditions and thread interleavings • Mutexes and critical sections • Semaphores using wait()/signal() and P()/V() • Producer-consumer bounded buffers • Readers-writers synchronization • Dining philosophers • AB-BA transfer deadlocks HOW IT WORKS • Pick real thread operations one step at a time • See shared state and synchronization update live • Try realistic mistakes and observe their consequences • Undo and reset freely • Open a concise explanation for each concept Use Prof. Sema for an operating systems course, exam revision, interview prep, or self-study. Every lesson works without an account. Sign in only if you want to sync progress across devices. Free. No ads. No tracking.