What is Computer Science?

Computer science is the study of computers, how they work, and how we can use them to solve problems. It teaches us how computers think, how we can make programs, and how to use technology in daily life. In simple words, computer science is all about understanding computers and using them in smart ways.
Whether it’s making websites, building mobile apps, or creating games, computer science plays a key role in everything digital. Today, it’s one of the most popular and powerful fields in the world.
What is Computer Science About?
Many people ask, what is computer science about? It’s about learning how to:
- Write computer programs (coding)
- Solve problems using technology
- Understand how computers and software work
- Build applications, websites, and systems
- Manage data, networks, and databases
It also covers things like artificial intelligence (AI), cybersecurity, machine learning, and cloud computing.
What is Computer Science BS?
A BS in Computer Science (Bachelor of Science) is a university degree that usually takes 4 years to complete. It teaches students both theory and practical skills in computing. Students learn programming, math, data structures, computer networks, and more.
So, what is computer science BS for? It prepares students for jobs in software development, system analysis, data science, and many other technology fields.
What is Computer Science Major?
When students choose a subject to focus on at university, it’s called a major. So, what is computer science major? It means choosing computer science as your main field of study. A computer science major includes:
- Programming languages like Python, Java, and C++
- Algorithms and problem-solving
- Operating systems
- Web development
- Artificial intelligence and robotics
Choosing computer science as a major opens the door to many exciting career paths.
What is Computer Science Courses?
Computer science courses are the subjects or classes students take to learn the field. Some common computer science courses include:
- Introduction to Programming
- Data Structures and Algorithms
- Database Systems
- Operating Systems
- Computer Networks
- Web Development
- Mobile App Development
- Machine Learning
- Cybersecurity
These courses help students gain the skills they need to build apps, solve tech problems, and work in the tech industry.
What is Computer Science Engineering?
Computer science engineering is a branch of engineering that combines computer science with hardware and system design. While normal computer science focuses more on software and coding, computer science engineering includes both software and hardware.
Students of computer science engineering learn about:
- Computer architecture
- Embedded systems
- Microprocessors
- Circuit design
This makes them well-suited for careers in both software companies and electronics or tech hardware firms.
What is Computer Science Job?
Many wonder, what is computer science job? There are many types of jobs in this field. Some popular roles include:
- Software Developer
- Web Developer
- Data Scientist
- IT Specialist
- Cybersecurity Analyst
- Systems Engineer
- Mobile App Developer
- Game Developer
- Network Administrator
- AI/ML Engineer
These jobs are in demand worldwide and pay well. Many of them can also be done remotely.
What is Computer Science Salary?
Computer science careers are known for their good salaries. So, what is computer science salary? It depends on the job, experience, and country, but here’s a general idea:
- Fresh Graduates: $40,000 – $70,000 per year
- Experienced Developers: $80,000 – $120,000+
- Specialists (like AI or cybersecurity): $100,000+
In Pakistan, starting salaries for computer science graduates range from PKR 40,000 to 80,000 per month and grow quickly with experience.
What is Computer Science Degree?
A computer science degree is a qualification you get after studying computer science at a university or college. It proves that you have learned how to work with computers, software, and technology.
This degree helps you get jobs in IT companies, banks, education, software houses, and even government departments.
What is Computer Science and IT?
Some people think computer science and IT (Information Technology) are the same, but they are slightly different.
- Computer Science: Focuses more on programming, algorithms, and software development.
- Information Technology (IT): Focuses more on managing computer systems, networks, and hardware.
Both fields are related and often work together. Many jobs require knowledge of both.