If we think of “computer science” as an umbrella term for so many aspects of computing today, its importance is immediately apparent. Artificial intelligence (and the programming that lies behind it) falls into the computer science category. The same goes for machine learning, data science, networking, cybersecurity, and so many other elements of what make modern computing technology tick.

You need a solid grounding in computer science – both general concepts and theory – to move into one of these areas of specialization. And if you need to get that grounding on a budget, these free computer science courses teach you what you need to know and come with a handy certification.

Top Free Certified Computer Science Online Courses

As surprising as it may seem, you don’t have to pay money to get an education in computer science that employers actually care about. Free courses exist. And many of these free online computer science courses deliver a certification that proves your knowledge and comes from an institution that employers respect.

Course 1 – CS50: Introduction to Computer Science (Harvard University)

We’re stretching the definition of “free and certified” with the first course on the list. Though it’s free to take (and you get an audit of your performance without paying a penny), the verified certification for Harvard’s CS50 course costs $189 (approx. €175).

Assuming you’re willing to part with the cash, this course gives you a certificate from one of the United States’ most respected institutions, in addition to a crash course in computer science fundamentals. Over 11 weeks of self-paced learning (you’ll need to commit at least 10 hours per week to the course) you’ll develop a fundamental understanding of computer science and the programming that underpins it.

Concepts covered include data structures, abstraction, web development, and algorithms, creating a course that melds the math of modern computing with the theoretical concepts you’ll apply in the real world. Prospective programmers enjoy some diversity, too, as the course teaches the basics of several languages. Python, C, JavaScript, and HTML are all covered, though not in enough detail for you to achieve mastery in any of them. Still, as online certified courses for computer science go, CS50 delivers a prestigious certificate and exposes you to ambitious peers who may offer networking potential beyond the course content.

Course 2 – CS50’s Computer Science for Business Professionals (Harvard University)

It’s hard to look beyond Harvard when it comes to free computer science courses because you’re getting education and certification from a top university. With CS50 Computer Science for Business Professionals, Harvard moves beyond the tech-centric approach of its usual CS50 course to demonstrate how computer science principles apply in a real-world setting.

It’s a short course, clocking in at six weeks of study and only requiring two-to-six hours of work per week. That makes it perfect for professionals who want to boost their knowledge without a full-time commitment. You’ll tackle more high-level concepts in computer science, including the fundamentals of cloud computing and how to build technology stacks. All of which makes this like a speed run through of what you need to know about computing on a business level.

That’s not to say you won’t learn any technical theory. Several programming languages are covered (albeit in short-form style), as are the basics of computational thinking. But like CS50 above, certification comes at a cost, even if the course itself is free. Paying for an optional upgrade with EDX (through which the course is offered) is the only way to nab your certificate, if you do get a free course audit to demonstrate completion regardless.

Course 3 – Introduction to Computer Science and Programming Using Python (Massachusetts Institute of Technology)

Offered in conjunction with the EDX platform, this computer science online course takes a Python-focused approach to its teaching. Unlike CS50, which covers a wide range of topics in brief, MIT’s course focuses on how computer science is like a tool that you can use to create software and algorithms. Python 3.5 is the technology behind that tool and you’ll learn how to use it by examining and analyzing real-world problems.

The nine-week course starts by demonstrating the basics of Python (some self-learning and expansion of these concepts may be required) before moving into algorithms. Once you’ve gotten to grips with basic algorithm creation, you’ll learn how to test what you create and how those algorithms become the building blocks of complex data structures.

You have to make a substantial time commitment with this course, with MIT requiring you to spend at least 14 hours per week on your studies if you wish to stick to the nine-week schedule. And though effective in teaching you the basics of Python, the course is really a primer for a second MIT course – Introduction to Computational Thinking and Data Science – that requires payment. But it’s a useful course as a standalone product, but you’ll have to pay a fee to EDX if you want a course-centric certificate.

Factors to Consider When Choosing a Free Certified Computer Science Online Course

The trio of free online computer science courses discussed above each offer something different. Depending on your choice, you’ll get a bottom-up crash course in the theory, a practical understanding of how computer science works in a business context, or an in-depth guide to using Python. But when choosing between the three courses above (or any other courses you find) you must consider the following factors.

The Course Content and Its Relevance to Your Goals

The big question here is – what do you want to achieve with the course?

Sure, having a certificate, especially one with a major university’s name on it, is nice. But if that certificate demonstrates that you’ve learned skills that you don’t need for your intended career path then it’s not worth the paper it’s printed on.

Think of choosing a course like making an investment on which you expect a return. Outline your goals – both learning-centric and career-based – for taking the course. Then, find a course that helps you to reach those goals through laser-focused learning on topics you’ll use in the future.

Course Duration and Flexibility

For a young learner without full-time work or family commitments, taking on a computer science online course that requires months of study may not be a big deal. But that’s not the case for everybody. If you have limited hours available during the week, you need a course that you can fit into those hours rather than one that forces you to fit your life around the course.

Thankfully, most free online computer science courses make allowances for schedule flexibility by taking a self-paced learning approach. You’ll get access to all of the course resources upfront, allowing you to choose when you study. You may be able to get ahead during one week in preparation for a week where you know you can’t commit as much time, giving you the flexibility you need to fit the course into your schedule.

The Instructors and Their Expertise

Would you want to learn the theory of how to pilot a plane from somebody who’s never been up in the air? Of course you wouldn’t, and you must adopt the same attitude when choosing a computer science course.

Check the faculty list associated with the course (most reputable courses tell you who created them) and dig into their individual credentials. What have they done in the computer science industry? Where did they learn what they know? The answers to these questions tell you if your instructors and, by extension, your course are credible.

The Value of the Certification

When it comes to certification, look beyond the website that offers the course and instead focus on the institution that created it. For example, CS50’s Computer Science for Business Professionals is offered via the EDX platform, which doesn’t mean much to potential employers. But that certificate comes with a stamp of approval from Harvard University, which is a school that’s going to immediately raise eyebrows if it’s on your CV.

The point is that reputation matters, though it’s the reputation of the course creator that matters above that of the course platform. The more prestigious the name on the piece of paper, the more valuable the certificate is in the eyes of employers.

Tips for Successfully Completing a Free Certified Computer Science Online Course

With the tips for sifting through the sands of free computer science courses established, let’s round things off with some quick tips that’ll help you succeed in your studies:

  • Set clear goals for your education from the outset, with those goals aligning with your current experience level and desired outcomes.
  • Create a study schedule that fits around your commitments and stick to it as closely as you can.
  • Don’t skip assignments or practical sessions because everything included in the course is there to teach you something valuable.
  • Engage with the course community both to get advice from your peers and to potentially create networking opportunities.
  • Dedicate time to revision and research when preparing for exams or practical assessments to ensure you fully understand the course content.

Get Certified for Free and Improve Your Job Prospects

Given the importance of computer science to modern business – even the simplest of companies use software and have networks – it’s reasonable to want to build your knowledge of the subject. Free online computer science courses allow you to do that in exchange for a time commitment, with many allowing you to inject some flexibility into your study schedule.

Explore the three courses highlighted here, and look beyond them to more specialized courses once you’re confident in the foundational knowledge you’ve built. And remember – even a certificate from a free course has value in the job market if that course was created by a recognized institution.

Related posts

Master the AI Era: Key Skills for Success
OPIT - Open Institute of Technology
OPIT - Open Institute of Technology
Apr 24, 2025 6 min read

The world is rapidly changing. New technologies such as artificial intelligence (AI) are transforming our lives and work, redefining the definition of “essential office skills.”

So what essential skills do today’s workers need to thrive in a business world undergoing a major digital transformation? It’s a question that Alan Lerner, director at Toptal and lecturer at the Open Institute of Technology (OPIT), addressed in his recent online masterclass.

In a broad overview of the new office landscape, Lerner shares the essential skills leaders need to manage – including artificial intelligence – to keep abreast of trends.

Here are eight essential capabilities business leaders in the AI era need, according to Lerner, which he also detailed in OPIT’s recent Master’s in Digital Business and Innovation webinar.

An Adapting Professional Environment

Lerner started his discussion by quoting naturalist Charles Darwin.

“It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.”

The quote serves to highlight the level of change that we are currently seeing in the professional world, said Lerner.

According to the World Economic Forum’s The Future of Jobs Report 2025, over the next five years 22% of the labor market will be affected by structural change – including job creation and destruction – and much of that change will be enabled by new technologies such as AI and robotics. They expect the displacement of 92 million existing jobs and the creation of 170 million new jobs by 2030.

While there will be significant growth in frontline jobs – such as delivery drivers, construction workers, and care workers – the fastest-growing jobs will be tech-related roles, including big data specialists, FinTech engineers, and AI and machine learning specialists, while the greatest decline will be in clerical and secretarial roles. The report also predicts that most workers can anticipate that 39% of their existing skill set will be transformed or outdated in five years.

Lerner also highlighted key findings in the Accenture Life Trends 2025 Report, which explores behaviors and attitudes related to business, technology, and social shifts. The report noted five key trends:

  • Cost of Hesitation – People are becoming more wary of the information they receive online.
  • The Parent Trap – Parents and governments are increasingly concerned with helping the younger generation shape a safe relationship with digital technology.
  • Impatience Economy – People are looking for quick solutions over traditional methods to achieve their health and financial goals.
  • The Dignity of Work – Employees desire to feel inspired, to be entrusted with agency, and to achieve a work-life balance.
  • Social Rewilding – People seek to disconnect and focus on satisfying activities and meaningful interactions.

These are consumer and employee demands representing opportunities for change in the modern business landscape.

Key Capabilities for the AI Era

Businesses are using a variety of strategies to adapt, though not always strategically. According to McClean & Company’s HR Trends Report 2025, 42% of respondents said they are currently implementing AI solutions, but only 7% have a documented AI implementation strategy.

This approach reflects the newness of the technology, with many still unsure of the best way to leverage AI, but also feeling the pressure to adopt and adapt, experiment, and fail forward.

So, what skills do leaders need to lead in an environment with both transformation and uncertainty? Lerner highlighted eight essential capabilities, independent of technology.

Capability 1: Manage Complexity

Leaders need to be able to solve problems and make decisions under fast-changing conditions. This requires:

  • Being able to look at and understand organizations as complex social-technical systems
  • Keeping a continuous eye on change and adopting an “outside-in” vision of their organization
  • Moving fast and fixing things faster
  • Embracing digital literacy and technological capabilities

Capability 2: Leverage Networks

Leaders need to develop networks systematically to achieve organizational goals because it is no longer possible to work within silos. Leaders should:

  • Use networks to gain insights into complex problems
  • Create networks to enhance influence
  • Treat networks as mutually rewarding relationships
  • Develop a robust profile that can be adapted for different networks

Capability 3: Think and Act “Global”

Leaders should benchmark using global best practices but adapt them to local challenges and the needs of their organization. This requires:

  • Identifying what great companies are achieving and seeking data to understand underlying patterns
  • Developing perspectives to craft global strategies that incorporate regional and local tactics
  • Learning how to navigate culturally complex and nuanced business solutions

Capability 4: Inspire Engagement

Leaders must foster a culture that creates meaningful connections between employees and organizational values. This means:

  • Understanding individual values and needs
  • Shaping projects and assignments to meet different values and needs
  • Fostering an inclusive work environment with plenty of psychological safety
  • Developing meaningful conversations and both providing and receiving feedback
  • Sharing advice and asking for help when needed

Capability 5: Communicate Strategically

Leaders should develop crisp, clear messaging adaptable to various audiences and focus on active listening. Achieving this involves:

  • Creating their communication style and finding their unique voice
  • Developing storytelling skills
  • Utilizing a data-centric and fact-based approach to communication
  • Continual practice and asking for feedback

Capability 6: Foster Innovation

Leaders should collaborate with experts to build a reliable innovation process and a creative environment where new ideas thrive. Essential steps include:

  • Developing or enhancing structures that best support innovation
  • Documenting and refreshing innovation systems, processes, and practices
  • Encouraging people to discover new ways of working
  • Aiming to think outside the box and develop a growth mindset
  • Trying to be as “tech-savvy” as possible

Capability 7: Cultivate Learning Agility

Leaders should always seek out and learn new things and not be afraid to ask questions. This involves:

  • Adopting a lifelong learning mindset
  • Seeking opportunities to discover new approaches and skills
  • Enhancing problem-solving skills
  • Reviewing both successful and unsuccessful case studies

Capability 8: Develop Personal Adaptability

Leaders should be focused on being effective when facing uncertainty and adapting to change with vigor. Therefore, leaders should:

  • Be flexible about their approach to facing challenging situations
  • Build resilience by effectively managing stress, time, and energy
  • Recognize when past approaches do not work in current situations
  • Learn from and capitalize on mistakes

Curiosity and Adaptability

With the eight key capabilities in mind, Lerner suggests that curiosity and adaptability are the key skills that everyone needs to thrive in the current environment.

He also advocates for lifelong learning and teaches several key courses at OPIT which can lead to a Bachelor’s Degree in Digital Business.

Read the article
Lessons From History: How Fraud Tactics From the 18th Century Still Impact Us Today
OPIT - Open Institute of Technology
OPIT - Open Institute of Technology
Apr 17, 2025 6 min read

Many people treat cyber threats and digital fraud as a new phenomenon that only appeared with the development of the internet. But fraud – intentional deceit to manipulate a victim – has always existed; it is just the tools that have changed.

In a recent online course for the Open Institute of Technology (OPIT), AI & Cybersecurity Strategist Tom Vazdar, chair of OPIT’s Master’s Degree in Enterprise Cybersecurity, demonstrated the striking parallels between some of the famous fraud cases of the 18th century and modern cyber fraud.

Why does the history of fraud matter?

Primarily because the psychology and fraud tactics have remained consistent over the centuries. While cybersecurity is a tool that can combat modern digital fraud threats, no defense strategy will be successful without addressing the underlying psychology and tactics.

These historical fraud cases Vazdar addresses offer valuable lessons for current and future cybersecurity approaches.

The South Sea Bubble (1720)

The South Sea Bubble was one of the first stock market crashes in history. While it may not have had the same far-reaching consequences as the Black Thursday crash of 1929 or the 2008 crash, it shows how fraud can lead to stock market bubbles and advantages for insider traders.

The South Sea Company was a British company that emerged to monopolize trade with the Spanish colonies in South America. The company promised investors significant returns but provided no evidence of its activities. This saw the stock prices grow from £100 to £1,000 in a matter of months, then crash when the company’s weakness was revealed.

Many people lost a significant amount of money, including Sir Isaac Newton, prompting the statement, “I can calculate the movement of the stars, but not the madness of men.

Investors often have no way to verify a company’s claim, making stock markets a fertile ground for manipulation and fraud since their inception. When one party has more information than another, it creates the opportunity for fraud. This can be seen today in Ponzi schemes, tech stock bubbles driven by manipulative media coverage, and initial cryptocurrency offerings.

The Diamond Necklace Affair (1784-1785)

The Diamond Necklace Affair is an infamous incident of fraud linked to the French Revolution. An early example of identity theft, it also demonstrates that the harm caused by such a crime can go far beyond financial.

A French aristocrat named Jeanne de la Mont convinced Cardinal Louis-René-Édouard, Prince de Rohan into thinking that he was buying a valuable diamond necklace on behalf of Queen Marie Antoinette. De la Mont forged letters from the queen and even had someone impersonate her for a meeting, all while convincing the cardinal of the need for secrecy. The cardinal overlooked several questionable issues because he believed he would gain political benefit from the transaction.

When the scheme finally exposed, it damaged Marie Antoinette’s reputation, despite her lack of involvement in the deception. The story reinforced the public perception of her as a frivolous aristocrat living off the labor of the people. This contributed to the overall resentment of the aristocracy that erupted in the French Revolution and likely played a role in Marie Antoinette’s death. Had she not been seen as frivolous, she might have been allowed to live after her husband’s death.

Today, impersonation scams work in similar ways. For example, a fraudster might forge communication from a CEO to convince employees to release funds or take some other action. The risk of this is only increasing with improved technology such as deepfakes.

Spanish Prisoner Scam (Late 1700s)

The Spanish Prisoner Scam will probably sound very familiar to anyone who received a “Nigerian prince” email in the early 2000s.

Victims received letters from a “wealthy Spanish prisoner” who needed their help to access his fortune. If they sent money to facilitate his escape and travel, he would reward them with greater riches when he regained his fortune. This was only one of many similar scams in the 1700s, often involving follow-up requests for additional payments before the scammer disappeared.

While the “Nigerian prince” scam received enough publicity that it became almost unbelievable that people could fall for it, if done well, these can be psychologically sophisticated scams. The stories play on people’s emotions, get them invested in the person, and enamor them with the idea of being someone helpful and important. A compelling narrative can diminish someone’s critical thinking and cause them to ignore red flags.

Today, these scams are more likely to take the form of inheritance fraud or a lottery scam, where, again, a person has to pay an advance fee to unlock a much bigger reward, playing on the common desire for easy money.

Evolution of Fraud

These examples make it clear that fraud is nothing new and that effective tactics have thrived over the centuries. Technology simply opens up new opportunities for fraud.

While 18th-century scammers had to rely on face-to-face contact and fraudulent letters, in the 19th century they could leverage the telegraph for “urgent” communication and newspaper ads to reach broader audiences. In the 20th century, there were telephones and television ads. Today, there are email, social media, and deepfakes, with new technologies emerging daily.

Rather than quack doctors offering miracle cures, we see online health scams selling diet pills and antiaging products. Rather than impersonating real people, we see fake social media accounts and catfishing. Fraudulent sites convince people to enter their bank details rather than asking them to send money. The anonymity of the digital world protects perpetrators.

But despite the technology changing, the underlying psychology that makes scams successful remains the same:

  • Greed and the desire for easy money
  • Fear of missing out and the belief that a response is urgent
  • Social pressure to “keep up with the Joneses” and the “Bandwagon Effect”
  • Trust in authority without verification

Therefore, the best protection against scams remains the same: critical thinking and skepticism, not technology.

Responding to Fraud

In conclusion, Vazdar shared a series of steps that people should take to protect themselves against fraud:

  • Think before you click.
  • Beware of secrecy and urgency.
  • Verify identities.
  • If it seems too good to be true, be skeptical.
  • Use available security tools.

Those security tools have changed over time and will continue to change, but the underlying steps for identifying and preventing fraud remain the same.

For more insights from Vazdar and other experts in the field, consider enrolling in highly specialized and comprehensive programs like OPIT’s Enterprise Security Master’s program.

Read the article