Computer fundamentals courses can help you learn basic hardware and software concepts, operating systems, networking, and cybersecurity principles. You can build skills in troubleshooting, system maintenance, and understanding data management practices. Many courses introduce tools like Windows, Linux, and various programming languages, showing how these skills apply in everyday computing tasks and professional environments.

Skills you'll gain: Penetration Testing, Metasploit, Open Web Application Security Project (OWASP), Network Protocols, Vulnerability Assessments, Cyber Security Assessment, Exploitation techniques, Brute-force attacks, Windows PowerShell, Active Directory, Network Security, Network Analysis, Microsoft Windows, Wireless Networks, Scripting, Virtual Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Tensorflow, Keras (Neural Network Library), Model Evaluation, Transfer Learning, Natural Language Processing, Data Preprocessing, Deep Learning, Data Pipelines
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Ggplot2, Scatter Plots, Plot (Graphics), Data Visualization, Data Visualization Software, Heat Maps, R Programming, Graphical Tools, Data Wrangling, Tidyverse (R Package), Graphics Software
Intermediate · Course · 1 - 4 Weeks

Howard University
Skills you'll gain: Linear Algebra, NumPy, Applied Mathematics, Algebra, Python Programming, Data Manipulation
Mixed · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Model Context Protocol, AI Security, Threat Modeling, AI Workflows, Secure Coding, LLM Application, Enterprise Architecture, Generative AI Agents, Security Controls, Interoperability, Agentic systems, Generative AI
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Regression Analysis, Data Ethics, Statistical Methods, Data Science, R Programming, Data Modeling, Statistical Analysis, Predictive Modeling, Mathematical Modeling, Probability & Statistics, Model Evaluation, Feature Engineering
Build toward a degree
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Typography, UI Components, Web Design, HTML and CSS, User Interface (UI) Design, User Interface (UI), Browser Compatibility, Interactive Design, Usability, Web Design and Development, Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Front-End Web Development, Animations, Color Theory, Web Development, Web Development Tools
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Restful API, API Design, API Testing, Spring Boot, Authentications, Test Automation, JSON, Application Programming Interface (API), Test Script Development, Application Deployment, Spring Framework, Object-Relational Mapping, Test Case, Software Quality Assurance, Back-End Web Development, Integration Testing, Software Engineering, Data Modeling, Java Programming, Java
Beginner · Specialization · 1 - 3 Months
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Experience Design, Design Thinking, User Experience, User Centered Design, Customer experience strategy (CX), Business Intelligence, User Interface (UI) Design, Miro AI, Customer Analysis, Collaborative Software
Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Text Mining, Large Language Modeling, Natural Language Processing, Data Processing, LLM Application, Python Programming
Intermediate · Course · 1 - 4 Weeks
Amazon Web Services
Skills you'll gain: Amazon CloudWatch, Containerization, Microservices, Docker (Software), Amazon Web Services, Kubernetes, Amazon Elastic Compute Cloud, Application Deployment, Serverless Computing, System Monitoring, Scalability
Beginner · Course · 1 - 4 Weeks