Introduction to Computer Science
Computational thinking and the foundations of computing: the usual first CS course.
Computer science · from OpenStax
Start studying freeHome / Information technology
Study information technology, step by step
From IT fundamentals to networking, cybersecurity, Linux administration and information systems. Every course is free, and each pack is built from an openly licensed textbook.
The Information technology pathway (21 courses)
Core courses that help come first, then the major courses.
Programming with Python (Think Python)
A gentle, widely used first programming book: variables, functions, loops, data structures and objects.
Computer science · from an open web textbook
Start studying freeProgramming Fundamentals
Language-neutral programming concepts with Java, C++, Python and C# examples.
Computer science · from LibreTexts
Start studying freeDeveloper Tools: Shell, Git and Debugging
The command line, version control, editors and debugging that courses assume you already know.
Computer science · from an open web textbook
Start studying freeBusiness Analytics and Financial Modeling in Excel
Optimization, simulation and analytics with Excel: the practical modelling skills finance employers ask for.
Finance · from Pressbooks
Start studying freeIT Fundamentals and Computer Literacy
Hardware, operating systems, networks, security and office tools: the base of any IT program.
Information technology · from LibreTexts
Start studying freeComputer Information Technology and Literacy
A short companion on core IT literacy.
Information technology · from Pressbooks
Start studying freeInformation Systems
How organizations use information systems: hardware, software, data, networks and security.
Information technology · from OpenStax
Start studying freeWorkplace Software and Skills
Spreadsheets, documents and collaboration tools used in nearly every job.
Information technology · from OpenStax
Start studying freeSpreadsheets with Excel
Step-by-step Excel skills from formulas to charts and data analysis.
Information technology · from LibreTexts
Start studying freeCollege Algebra
Around 40 to 45 percent DFW in published campus reports; gates most business, science and health majors.
Mathematics · from OpenStax
Start studying freeIntroductory Statistics
Around 40 percent DFW at some institutions; required by most majors.
Statistics · from OpenStax
Start studying freeIntroduction to Programming (Python)
Introductory programming commonly sees 25 to 35 percent non-success; a gateway to computing majors.
Computer science · from OpenStax
Start studying freeBusiness Statistics
Required for business majors; probability and inference concepts trip up many students.
Statistics · from OpenStax
Start studying freeComputer Organization
Binary, the CPU, memory, the kernel and linking: how software meets hardware.
Computer science · from LibreTexts
Start studying freeOperating Systems
Processes, memory, files and threads: the concepts behind every operating system.
Computer science · from an open web textbook
Start studying freeComputer Networks
Protocols, routing, congestion control and security across the Internet.
Computer science · from an open web textbook
Start studying freeComputer Security
Memory safety, cryptography, web and network security from Berkeley's CS 161.
Computer science · from an open web textbook
Start studying freeCritical Infrastructure Cybersecurity
Securing industrial and critical systems.
Information technology · from LibreTexts
Start studying freeLinux System Administration
Installing, configuring and securing Linux servers, with the Debian handbook.
Information technology · from an open web textbook
Start studying freeComputer Systems Design
Principles for building reliable systems: modularity, networks, fault tolerance and security.
Computer science · from LibreTexts
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Gateway courses · Core courses · Finance · Computer science · IT · AI and data science
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