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AiTechWorlds
AiTechWorlds
Understand processes, threads, CPU scheduling, memory management, deadlocks, and file systems. The definitive OS course with real examples from Linux, Windows, and macOS.
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Your operating system is the most sophisticated piece of software most people will never think about. It manages every program running on your computer, controls access to memory, handles files, schedules CPU time, and coordinates hardware — all simultaneously.
This course teaches OS concepts with real-world examples from Linux, Windows, and macOS. Every abstract concept — process scheduling, virtual memory, deadlocks — is connected to something concrete you encounter every day. By the end, you will understand what happens when you run a program, why your computer slows down, how memory works, and what a file system actually does.
Go beyond OS theory — explore kernel design, system calls, process internals, memory management implementation, file system structures, Linux CFS scheduler, and OS security mechanisms.
Advanced · 16 lessonsUnderstand how the internet works — OSI model, TCP/IP, DNS, HTTP, routing, subnetting, and network security. Story-based with real-world examples from daily internet use.
Intermediate · 17 lessonsDeep dive into how computers are built and organized — logic gates, CPU pipelines, cache memory, instruction sets, and modern processor architectures. Story-based with verified technical content.
Intermediate · 16 lessonsLearn relational databases, SQL, ER diagrams, normalization, transactions, indexing, and NoSQL. Build real database systems with verified, industry-standard knowledge.
Intermediate · 16 lessonsFrom linear regression to neural networks — learn ML with Python, scikit-learn, and real datasets. Every algorithm explained intuitively before the math.
Advanced · 19 lessonsLast reviewed on June 13, 2026 by the AiTechWorlds Curriculum Team. All 17 lessons are free with no signup.
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