Computer science is about how software and computation work: programming, algorithms, data structures and the math behind them, with the goal of building new software. Information technology is about running and protecting the technology an organization depends on: networks, systems, cloud services, security and user support. In short, computer science builds the tools and IT keeps them working for people. Both lead to solid tech careers with different daily work.
What you would study
Computer science
- Programming in several languages, data structures and algorithms.
- Discrete math, calculus and often linear algebra or probability.
- Computer architecture, operating systems and theory of computation.
- Electives such as machine learning, graphics, databases or security.
Information technology
- Networking, operating systems and system administration.
- Databases, cloud platforms and scripting for automation.
- Cybersecurity basics, IT project management and help desk practice.
- Lighter math, more hands-on labs, and often preparation for industry certification exams.
Skills you build
- Computer science: abstract problem solving, designing efficient code, debugging complex programs and learning new languages quickly.
- Information technology: configuring and troubleshooting systems, keeping networks secure, documenting processes and explaining technology to people who are not technical.
Both majors reward patience with problems that will not cooperate. If you love the puzzle of writing code from scratch, lean CS. If you love fixing things for people and making systems reliable, lean IT.
Careers each major opens
- Computer science: software developer, web or mobile developer, game developer, data roles and research. See how to become a software developer, web developer and game developer.
- Information technology: help desk and support specialist, systems or network administrator, cloud support and security roles. See how to become a cybersecurity analyst.
The lines blur in practice: plenty of IT graduates learn to code and move toward development, and plenty of CS graduates work in security or cloud infrastructure. Read what you can do with a computer science degree and what you can do with an information technology degree for more, and choosing a major in the AI job market for how automation is changing entry-level tech work.
Grad school, licenses and credentials
Neither field requires a state license for most jobs, and many people work their whole careers with a bachelor’s degree. A master’s in computer science can help for specialized areas like machine learning, and a doctorate matters mainly for research. In IT, industry certifications in networking, cloud or security often carry real weight with employers and can be earned while working. Portfolios and practical experience count heavily in both.
How to decide, and how to test both
- Take an intro programming course and an intro networking or IT course in the same year.
- Build one small project of each kind: a simple app, and a home network or virtual server you configure yourself.
- Ask a developer and a systems administrator for informational interviews and ask what a frustrating day looks like.
- Look at entry-level job postings in your area and notice which ones you would actually want to do.
- Find a campus help desk or student tech job; it is a low-risk way to see IT from the inside.
Pay attention to how you react when something breaks. Some people want to understand the underlying logic and rewrite it; others want to get the system back up and keep users happy. Both instincts are valuable, and they point in different directions. If you are a high school student, a computer science course or a summer of helping family and neighbors with their tech can give you an early read on which instinct is stronger.
Can you combine them?
Few students need a double major here, since the courses overlap. A CS major with an IT or cybersecurity minor, or an IT major who adds extra programming electives, is usually enough. A minor in business, math or design can add range. See double major vs minor.
Where a mentor helps
A mentor helps you compare the two, set weekly goals for projects and coursework, plan internships and keep the job search moving. Mentors are not admissions counselors or credentialed career counselors; they help you do the research and the work yourself. See mentoring for college students and career and education mentoring.
Related
- Engineering vs computer science
- Data analyst vs software developer
- Careers for people who like technology
- First year software engineer tips
Common questions
Is computer science harder than IT?
Computer science usually requires more math and theory. IT is more hands-on but has its own challenges, like troubleshooting under pressure.
Can an IT major become a software developer?
Yes, with extra programming coursework and a portfolio of projects. Many developers came from IT or self-taught backgrounds.
Do I need certifications with a CS degree?
Usually not for development roles. They matter more in IT, networking, cloud and security work.
Which major is safer with AI changing tech jobs?
No major makes you immune to change. Strong fundamentals, real projects and the habit of learning new tools matter more than the label.
Get started
Torn between computer science and IT and want help testing both? Call (888) 305 5422, email contact@blackburnmentoring.com or start with a short assessment. A member of our team reviews every assessment personally and sets up a free intro call.