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Computer Science

B.A. (Moderatorship) Optional : Master in Computer Science (MCS); 100 places

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What is Computer science?

Computer Science is concerned with the study of everything to do with computers and our relationship with them. Computer scientists are critical to the efficient running of modern societies, dealing with health, security, banking and finance, transportation, and now increasingly our interaction through social networks. Computing professionals, like their counterparts in medicine, law, engineering, accountancy and finance, deal with theoretical issues, solve complex problems, deal with matters of ethics and with society at large. Theoretical issues in computer science relate to the abstract notions of computation and information. The study of these issues leads, for example, to efficient and robust algorithms and to new programming languages. Applications of computer science range from artificial intelligence to health informatics, from computer animation and graphics to information security, and from social network sites to educational and training systems.

Computer Science: The course for you?

Computer Science at Trinity is a challenging and exciting course with a focus on innovation and cutting-edge technology that demands the very best from our students. As a Computer Science graduate you will be able to apply your deep computer science knowledge along with a range of professional skills in teamwork and management to solve computational problems in all walks of life.

To get the best from the course you need to be interested in developing clear logical ideas about situations and about how to develop feasible schemes (‘algorithms’) for computers to deal with these situations. You need to be comfortable using mathematical techniques to solve problems.

If you are knowledgeable about computers already, to the extent of building them or writing programs for them, so much the better – but bear in mind, no prior knowledge of computer science is assumed.

Computer Science @ Trinity

Trinity is the highest ranked Irish university in Computer Science and Information Systems, ranked in the world top 100 by the QS World University Rankings by Subject 2015.

Computer Science at Trinity is an integrated programme: students can study for an honours degree over four years, and also have the option to study for a fifth year leading to a Master in Computer Science (MCS) degree.

The School of Computer Science and Statistics at Trinity is recognised for establishing computer science as an academic discipline in Ireland. Over a period of more than 50 years, the School has earned a strong international reputation and has partnerships in education, research and industry across the globe.

The School collaborates with leading employers and fosters innovation through its many successful start-up companies – including Iona Technologies, Havok, Kore, Swrve, Quaternion Labs, LinguaBox, Wifi Guard, CipherApps, Haunted Planet Studios, Haptica, GLANTA, Tolerant Networks, Cara Health, X Communications Ltd, EmpowerTheUser, Insight Statistical Consulting, Xcelerit, Wripl, Emizar, SoapBox Labs, Good Travel Software and SilverCloud.

This course is accredited by Engineers Ireland.

Graduate skills and career opportunities

Graduates from this programme are highly sought after and can expect to find employment anywhere in the world. Each year leading employers in the sector attend a special recruitment fair held at the School of Computer Science and Statistics which affords students an opportunity to chat informally regarding their career opportunities. Graduates find employment in almost every sector from communications and entertainment to manufacturing and transportation, government, healthcare, education and many more. Positions can be found within: design, testing, manufacturing, support and implementation, information systems, research and development, operations and management. Many graduates hold senior positions such as CTO and CIO. Others pursue careers in research to PhD and beyond. The School is proud of the entrepreneurial and academic success of its graduates.

Your degree and what you’ll study


In the first three years of the programme, you will develop key skills in designing and implementing computer programs and systems, solving problems, using mathematics and communicating both orally and in writing. You will learn how to use a range of programming languages and how to tackle large software engineering projects. You will also learn about computer hardware and develop a broad knowledge of other topics, including networks and telecommunications, information management and the relationship between computers and society.

At the end of third year, you choose to study either for the honours degree (B.A. Moderatorship in Computer Science) or the Master in Computer Science (MCS).


If you decide to study for the honours degree in Computer Science over four years, you can choose from a range of advanced subjects to study including: Artificial Intelligence; Computer Graphics and Animation; Computer Vision; Networked Applications; Mobile Telecommunications; and many others. Topics are reviewed annually to reflect developments in the field of computing.

You will spend the second half of this fourth year working with an academic supervisor on a substantial project in an area of your choice.

If you decide to study for the Master in Computer Science degree over five years, you also choose from the range of advanced subjects listed above. The second half of your fourth year will be spent working on an internship, in Ireland or abroad. Here you will have opportunities to work on real projects, putting into practice the knowledge and skills that you have developed during your studies. Companies participating on our Internship programme include: Cisco, DemonWare, Microsoft, MasterCard, Murex, Susquehanna International Group (SIG), Arris, Intel, Creme, Accenture, Deloitte, Google, First Derivatives, Curam, Havok, IBM, Bloomberg, Symantec, Bank of America Merrill Lynch, Ezetop, Ericsson, Glanta Ltd, SAP, Amazon, Palantir, Corville, Xcelerator, AOL, Fastnet, Learnovate Centre, Incognito, Bearing Point, Swrve and Vistatec.

In your fifth and final year, as well as continuing to study advanced subjects, you will spend the second half of the year working with an academic supervisor on a substantial research dissertation in an area of your choice.

On successful completion of the five years, both a B.A. Moderatorship and Master in Computer Science are awarded.

Study abroad

You may apply to spend your third year studying at a university abroad as part of an exchange programme.



Tel: +353 1 896 1765

What our graduates say

Katharine Burton

“What I really enjoyed about the course was the exposure to software, hardware and telecommunications which gives you the entire view of a system rather than the separate components. I found the lecturers to be knowledgeable and approachable. We were also required to take part in many group activities which developed our communication and team working skills and in turn prepared us well for the workplace environment. Being a male dominated science, I think we need more girls to think seriously about studying computer science at university.

During my summers at Trinity, I undertook a number of internships both in Ireland and abroad. One of these internships resulted in a full-time graduate job offer in London.”

Course Options


B.A. (Moderatorship) Optional : Master in Computer Science (MCS)

Number of Places


CAO code (Central Applications Office code) is


Admission Requirements

For general admission requirements please click here

Leaving Certificate H4 Mathematics Advanced GCE (A-Level) Grade C Mathematics Other EU examination systemsSee


To apply to this course, click on the relevant Apply Link below

EU Applicants

Read the information about how to apply, then apply directly to CAO.

Non-EU Applicants

  • Computer Science, 4 years full-time Closing Date: 30/JUN/2018
  • Advanced Entry Applications

    Read the information about how to apply for Advanced Entry, then select the link below to apply.