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Data Structures & AlgorithmsComplexity analysis up to graphs and DP.Operating SystemsProcesses, scheduling, memory and concurrency.Database Management SystemsRelational modelling, transactions and indexing.Computer NetworksFrom wires and radio waves up to the web.

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Operating Systems

Foundations of Operating Systems3

Processes & Threads4

Inter-Process Communication3

Concurrency & Synchronization4

Race conditions and the critical section problem
Locks and mutexes — the bathroom key trick
Semaphores and monitors — counting turns and tidy rooms
The classic synchronization problems, solved from scratch

CPU Scheduling4

I/O & Disk Scheduling3

Memory Management4

Virtual Memory3

Building Your Own OS in C++6

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Operating Systems

Foundations of Operating Systems3

Processes & Threads4

Inter-Process Communication3

Concurrency & Synchronization4

Race conditions and the critical section problem
Locks and mutexes — the bathroom key trick
Semaphores and monitors — counting turns and tidy rooms
The classic synchronization problems, solved from scratch

CPU Scheduling4

I/O & Disk Scheduling3

Memory Management4

Virtual Memory3

Building Your Own OS in C++6

Learn Operating Systems Concurrency & Synchronization

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The classic synchronization problems, solved from scratch

Producer-consumer, readers-writers, and dining philosophers — the three textbook puzzles that every synchronization tool gets tested against.

10 min readUpdated 2026-09-03operating-systemsconcurrencyproducer-consumerdining-philosophers