What is Computer Science? – Definition, Importance, Types and More

Computer Science Definition

Computer science is the science of the systematic processing of information. In simple words it is an automatic processing with the help of computer systems. Historically, computer science has developed as a science from mathematics. And while the development of the first computer systems has its origins in electrical engineering and communications engineering.

However, computers are only a tool and [medium of computer science] to put the theoretical concepts into practice. From the Dutch computer scientist Edsger Wybe Dijkstra the sentence comes “In computer science, it is just a little about computers as astronomy is about telescopes.”

Importance of computer science

Computer science has found its way into practically all areas of modern life. The enormous influence of the internet is compounded by it. Worldwide networking has revolutionized corporate communications and logistics, but the media has also revolutionized virtually all private households. [Computer science] is less obvious but omnipresent in household appliances such as video recorders or dishwashers in which embedded systems take over more or less intelligent control.

Computers can manage, secure, exchange, and process large amounts of data in a short time. To make this possible, the interaction of sophisticated hardware and software systems is necessary, which also represent the essential field of [research in computer science]. As an example may serve Wikipedia itself, in which 50,000 users and millions of visitors daily search, read and edit thousands of articles.

The [strengths of computer systems] are to be able to perform schematic calculations on large amounts of data with high speed and accuracy. In contrast, many seemingly common human intelligence services areas based on cognitive performance, which can be provided by computers only minimal today. It is the recognition of faces or the making of decisions with an uncertain knowledge base.

Such processes investigate by artificial intelligence — significant results achieve in individual sub-disciplines. However, a comprehensive imitation can not talk about human intellect.

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Types of [Computer Science]

Theoretical computer science

It deals with the fundamental questions of processing, structures, transmission, reproduction, and how these are related. Contents include the theory of formal languages, algorithm theory, logic, automaton theory and information, and database theory. Phrases, algorithms, and solutions to problems have emerged from mathematical abstraction using models obtained. Thus, [theoretical computer science] forms a formal skeleton that informs [computer science] with accurate knowledge and methods.

Practical Computer Science

The field of actual computer science deals with the performance, reliability, efficiency, and security of applications and computer-based solutions. In addition to a good understanding of logic and formal procedures, mathematical-statistical basics are also an essential prerequisite for practical [computer science]. Another important aspect of actual computer science is software engineering, the operating system, and the associated [computer science languages].

Computer Engineering

This is another [major field of computer science], which at the same time also forms the interface between [computer science and electrical engineering]. Technical computer scientists design, produce, implement, and operate the components of communication and information systems and also work, especially with hardware components and system-related software. The course of study of the computer engineer includes many practical elements and is strongly scientific / mathematically oriented.

Applied [Computer Science]

As applied computer science eliminates the problem areas for the use of information-processing technology and prepares application programs; It is in close communication with society. Therefore, [applied computer science] is particularly influential in the social and cultural character of a community.


In addition to these [four pillars of computer science], there are some [computer science] offshoots, the so-called hyphenated computer science. The aim here is to combine sound knowledge of the desired field of application with the [basic understanding of computer science] methods.

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Kamran Sharief

I write about technology, marketing and digital tips. In the past I've worked with Field Engineer, Marcom Arabia and You can reach me at

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