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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

CPU Scheduling4

What are we even trying to optimize? Scheduling goals and metrics
FCFS, shortest job first, and priority scheduling
Round robin and multilevel queue scheduling
Scheduling across multiple cores, and real-time systems

I/O & Disk Scheduling3

Memory Management4

Virtual Memory3

Building Your Own OS in C++6

Lessons

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Operating Systems

Foundations of Operating Systems3

Processes & Threads4

Inter-Process Communication3

Concurrency & Synchronization4

CPU Scheduling4

What are we even trying to optimize? Scheduling goals and metrics
FCFS, shortest job first, and priority scheduling
Round robin and multilevel queue scheduling
Scheduling across multiple cores, and real-time systems

I/O & Disk Scheduling3

Memory Management4

Virtual Memory3

Building Your Own OS in C++6

Learn Operating Systems CPU Scheduling

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Scheduling across multiple cores, and real-time systems

What changes when there's more than one CPU to schedule onto, and what happens when "fast" isn't good enough — it has to be "on time."

9 min readUpdated 2026-09-03operating-systemscpu-schedulingmultiprocessorreal-time-systems