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.

Skills you'll gain: Medical Billing, Medical Billing and Coding, Claims Processing, Medical Coding, Revenue Cycle Management, ICD Coding (ICD-9/ICD-10), CPT Coding, Medical Office Procedures, Medical Terminology, Adjudication
Beginner · Course · 1 - 4 Weeks

University of Alberta
Skills you'll gain: Safety Culture, Diversity Equity and Inclusion Initiatives, Stress Management, Organizational Leadership, Industrial and Organizational Psychology, Diversity and Inclusion, Occupational Safety And Health, Workplace inclusivity, Employee Performance Management, Trustworthiness, Culture Transformation, Organizational Development, Diversity Awareness, Strategic Leadership, Workplace Bullying Intervention, Leadership, Employee Engagement, Resilience, Mental Health, Communication
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Corporate Sustainability, Sustainable Technologies, Sustainable Development, Sustainable Design, Sustainable Systems, Environmental Social And Corporate Governance (ESG), Supply Chain Management, Supply Chain Planning, Supply Chain, Supply Chain Systems, Transportation, Supply Chain, and Logistics, Case Studies, Logistics, Business Technologies, Logistics Management, Climate Change Mitigation, Corporate Strategy, Transportation Operations, Waste Minimization
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Safety, Electric Power Systems, Electrical Equipment, Maintenance, Repair, and Facility Services, Safety Standards, Hardware Troubleshooting, Electrical Systems, Basic Electrical Systems, Safety Assurance, High Voltage, Power Electronics, Sustainable Technologies, Transportation Operations, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Customer Service, Customer Relationship Building, Continuous Improvement Process, Process Improvement, Quality Improvement, Performance Metric, Service Improvement, Customer Support, Customer experience improvement, Technical Support and Services, Customer Complaint Resolution, Performance Measurement, Technical Support, Customer Retention, Key Performance Indicators (KPIs), Relationship Management, Expectation Management, Rapport Building, De-escalation Techniques, Conflict Management
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Stakeholder Engagement, Project Schedules, Stakeholder Management, Information Technology, Project Risk Management, Environmental Social And Corporate Governance (ESG), IT Management, Scheduling, Vendor Management, Procurement, Purchasing, Vendor Relationship Management, Project Management, Stakeholder Communications, Issue Tracking, Project Management Life Cycle, Risk Management, Project Planning, Quality Management, Performance Management
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Marketing Strategies, Data-Driven Marketing, Marketing Effectiveness, Email Marketing, Marketing Analytics, Digital Marketing, Driving engagement, Customer Relationship Management, Digital Advertising, Online Advertising, Google Ads, Social Media Marketing, Cross-Channel Marketing, Target Market, Personalized Campaigns, Data Collection
Beginner · Course · 1 - 4 Weeks

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

EDUCBA
Skills you'll gain: Microservices, Spring Framework, Spring Boot, YAML, MongoDB, Application Deployment, NoSQL, Ajax, Software Architecture, Java Programming, Frontend Integration, Java, Development Environment, Scalability, Load Balancing, Data Integration, Configuration Management, File I/O, File Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Systems Administration, Shell Script, Linux Commands, Linux Administration, Unix Shell, Linux, Unix, Scripting, Scripting Languages, IT Automation, File I/O
Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Data Security, Cloud Security, Azure Active Directory, Microsoft Azure, Data Storage, Encryption, Cloud Storage, Microsoft SQL Servers, Active Directory, Data Access, Authentications, Database Management, Databases, Data Governance, Key Management, Identity and Access Management, Firewall
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Relational Databases, SQL, Databases, Data Access, Data Manipulation, Database Development, Query Languages
Beginner · Course · 1 - 4 Weeks