Operating system courses can help you learn process management, memory allocation, file systems, and user interfaces. You can build skills in troubleshooting system errors, optimizing performance, and implementing security protocols. Many courses introduce tools like Linux, Windows, and virtualization software, illustrating how these skills are applied in real-world environments.

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Physiology, Biochemistry, Cell Biology, Pharmacology, Molecular Biology, Molecular, Cellular, and Microbiology, Life Sciences, Blood Pressure, Immunology, Medical Science and Research, Biology, Microbiology, Oncology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Docker (Software), Containerization, Linux, Devops Tools, Network Troubleshooting, Linux Servers, Linux Commands, Ansible, Kubernetes, Infrastructure as Code (IaC), Operating System Administration, Network Monitoring, Network Administration, System Configuration, Remote Access Systems, Multi-Factor Authentication, Network Protocols, Network Security, Hardening
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Engineering, Network Monitoring, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Network Administration, Local Area Networks, Network Analysis, OSI Models, Network Model, Network Routing
Build toward a degree
Beginner · Course · 1 - 3 Months

Harvard Business Review
Skills you'll gain: Performance Analysis, Goal Setting, Performance Measurement, Team Performance Management, Goal-Oriented, Smart Goals, Performance Metric, Performance Management, Performance Improvement, Employee Performance Management, Key Performance Indicators (KPIs), Business Priorities, Prioritization, Organizational Strategy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vector Databases, Hugging Face, AI Personalization, Artificial Intelligence, Embeddings, Natural Language Processing, Feature Engineering, MongoDB
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Git (Version Control System), GitHub, Version Control, Open Source Technology, Unix Shell, Collaborative Software, Software Installation, Unix Commands, Microsoft Visual Studio, Software Versioning, Linux Commands, Linux, Mac OS, Web Development Tools, Shell Script, File Management, Command-Line Interface, Code Review, Application Deployment, React.js
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Customer Acquisition Management, Data-Driven Marketing, Marketing Analytics, Branding, Brand Marketing, Brand Management, Customer Engagement, Target Audience, Customer Insights, Marketing Channel, Marketing, Brand Loyalty, Customer Relationship Building, Campaign Management, Performance Measurement
Beginner · Course · 1 - 4 Weeks

The University of Tokyo
Skills you'll gain: Sensory Systems Analysis, Neurology, Electrophysiology, Medical Imaging, Psychology, Radiology, Diagnostic Radiology, Biomedical Engineering, Digital Signal Processing
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Email Security, Mobile Security, Network Security, Open Web Application Security Project (OWASP), Network Monitoring, Intrusion Detection and Prevention, Threat Detection, TCP/IP, Network Analysis, Network Protocols, Cybersecurity, Application Security, Wireless Networks, Splunk, Information Privacy
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Network Monitoring, Network Administration, Network Troubleshooting, Network Support, General Networking, Event Monitoring, Network Security, Computer Networking, Network Infrastructure, Command-Line Interface, Software-Defined Networking, Application Programming Interface (API), System Configuration, Network Protocols, Security Controls, Configuration Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unreal Engine, Video Game Development, Animation and Game Design, Game Design, Animations, User Interface (UI), Interactive Design, Prototyping, Virtual Environment, Simulation and Simulation Software, Visualization (Computer Graphics), Simulations, Artificial Intelligence, User Interface (UI) Design, 3D Assets, Physics, Event-Driven Programming, UI Components, Scripting, Development Environment
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: AI powered creativity, Visual Storytelling, Intellectual Property, Ideation, Brand Strategy, Brand Marketing, Adobe Firefly, Target Audience, Creative Thinking, Branding, Creativity, Graphic Design, Entrepreneurship, Design, Adobe Photoshop, Business Strategy, Adobe Illustrator, Artificial Intelligence, Communication, Digital Marketing
Beginner · Specialization · 1 - 3 Months