Best Online Computer Science Courses and Programs (2024)

Why learn computer science?

Understanding computer science can prepare learners to work in a broad range of computer science jobs. Computer science plays a role in data science, computer programming, engineering, business, education, government, and everyday life. A typical computer science jobmay require the ability to analyze problems and develop solutions related to computer hardware and software, as well as design computers and the software that run them.^{Footnote 2 Footnote 3}Certain roles may involve theoretical work in academics or practical work, such as software development.

Learners do not necessarily need to have a programming background in order to learn computer science, but taking a computer science course online or earning a computer science certificate can be a great path to enter the field. If an individual is interested in how to learn about computer science, they can also aim to earn an online computer science degree to strengthen their knowledge and put computing applications into practice.

Computer science course curriculum

Not all computer science courses look the same, but they are grounded in similar computer science principles. A sample curriculum of computer science courses may include topics in the following subjects: computer engineering, computer science, information systems, information technology, or software engineering. More advanced computer science classes may cover subjects such as designing and analyzing algorithms, human-computer interactions, or building applications for the internet of things (IoT).^{Footnote 4}

Some computer science tutorialsare free to take for professional development, but learners can also opt for courses with credit, complete micro-degrees, earn bachelor's degrees in computer science, or obtain a master's degree in a topic such as data science.

It’s important to have a basic understanding of mathematics, statistics, and some science knowledge to succeed in computer science jobs. And understanding some social sciences and humanities concepts can also help those pursuing data science jobs.

Computer science jobs

There are many types of computer science jobs,^{Footnote 5} including:

• Computer scientists, who explore, construct, and implement complex computing systems, new computing languages, software systems, and other tools to improve user experience with computers.^{Footnote 6}

• Network administrators, who regulate the day-to-day operation of computer networks, including local area networks and other data communication.^{Footnote 7}

• Software developers, who design and develop software to allow users to conduct tasks and solve issues with the software.^{Footnote 8}

Computer engineering, a closely related field, focuses on designing and developing systems such as cellular communications, medical devices, alarm systems, and military technologies. Individuals can learn computer science online to get a feel for which niche is right for them.

How to become a computer scientist online

When deciding how to learn about computer science, there are a few pathways a learner could take. One common path includes earning a bachelor’s in data science or computer science, followed by a master’s degree in data science or a related field, as the typical entry-level education required for computer scientist jobs is a master’s degree.^{Footnote 9}

However, if a learner is looking for a second career or gaining additional knowledge and skills, taking computer science classes online via boot camps or short courses is another option to learn computer science for beginners, or Python online. Many computer science courses help learners understand the topics from a beginner’s level, so there are not always many prerequisites required beyond having an open mind for discovery.

What does a computer scientist do?

Computer scientists design and develop innovative uses for new and existing computer technology. Their jobs may involve developing new computing languages and conducting experiments to test how systems work. Computer science borrows techniques from data science and machine learning.^{Footnote 10}

Is computer science hard to learn?

Computer science may not be hard to learn for those whose strengths lie in mathematics, statistics, technology, and computing. A learner’s aptitude for computer science depends on their prior knowledge, experience, and dedication to study, among other factors.

What skills do I need before learning computer science?

When learning computer science, it’s important to build analytical skills, critical reasoning, and creativity. Computer scientists need to know how to problem-solve complex computing issues that can be found in software development or computer engineering. A basic understanding of mathematics, statistics, and some science can help, too.

How long does it take to learn computer science?

It can take anywhere from several months to several years to learn computer science, depending on a learner’s educational and professional background. To learn computer science online, a program can be entirely self-paced. Degree programs can take several years to complete, depending on a learner’s schedule preferences. For boot camps and short courses, it can take several months or several years to build the skills required for becoming a web developer or proficiency for other careers in computer science.

What are the key principles of computer science?

Key computer science principles include computation, automation, evaluation, communication, coordination, recollection, and design.^{Footnote 11}

What is the difference between computer science and computer engineering?

Computer science focuses on building innovative computing technology. On the other hand, computer engineering — traditionally considered a combination of computer science and electrical engineering — focuses on designing, implementing, and maintaining software and hardware of computer systems.^{Footnote 12}