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.

Alex Genadinik
Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Web Presence, Blogs, Content Optimization, Digital Marketing
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Systems Analysis, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Analysis, General Networking, Virtual Machines, Web Servers, Network Administration, Computer Networking, Unix Shell
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Presentations, Productivity Software, Multimedia, Business Communication, Content Creation, User Accounts, Web Presence, Graphic Design, Business Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Financial Modeling, Entrepreneurial Finance, Business Valuation, Entrepreneurship, Financial Analysis, Finance, Financial Forecasting, Return On Investment, Financial Statement Analysis, Balance Sheet, Financial Statements, Equities, Income Statement
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Entry, Data Validation, Data Integrity, Data Capture, Data Processing, Data Management, Spreadsheet Software
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Network Security, Cyber Operations, Network Monitoring, Exploitation techniques, Vulnerability Scanning, Cryptographic Protocols, Remote Access Systems, Network Protocols, Encryption, General Networking, Command-Line Interface, Network Analysis, Proxy Servers
Build toward a degree
Intermediate · Course · 1 - 3 Months

Alfaisal University | KLD
Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Analysis, Accounting, Income Statement, Generally Accepted Accounting Principles (GAAP), Standard Accounting Practices, Financial Reporting, Financial Accounting, Financial Data, Balance Sheet, Budgeting
Beginner · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Systems Thinking, Innovation, Product Development, Entrepreneurship, Strategic Thinking, Computing Platforms, New Business Development, Business Strategies, Business Modeling, Growth Strategies, Business Transformation, Target Market, Customer Analysis, Value Propositions, Case Studies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Financial Modeling, Strategic Decision-Making, Financial Forecasting, Operating Cost, Forecasting, Financial Analysis, Operating Expense, Financial Statement Analysis, Revenue Forecasting, Financial Data, Business Valuation, Financial Statements, Cash Flow Forecasting, Income Statement, Financial Reporting, Business Modeling, Working Capital, Trend Analysis, Depreciation, Balance Sheet
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Account Strategy, Account Management, Customer Success Management, Customer Engagement, Customer Retention, Customer Relationship Building, Customer Service, Customer Relationship Management, Milestones (Project Management), Relationship Building, Growth Strategies, Expectation Management, Relationship Management, Data-Driven Decision-Making
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Microservices, Frontend Integration, JavaScript Frameworks, Microarchitecture, Front-End Web Development, Event-Driven Programming, Web Design, Secure Coding, Software Design, Scalability, Server Side, Maintainability, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional de Colombia
Skills you'll gain: Mathematical Modeling, Machine Learning Methods, Computational Logic, Mathematics and Mathematical Modeling, Mathematical Software, Model Optimization, Machine Learning, Applied Mathematics, System Design and Implementation, Programming Principles, Arithmetic
Intermediate · Course · 1 - 4 Weeks