Computer science, abbreviated as "compsci", is (surprise-surprise) a [science](science.md) studying [computers](computer.md). The term is pretty wide, a lot of it covers very formal and theoretical areas that neighbor and overlap with [mathematics](marh.md), such as [formal languages](formal_language.md), [cryptography](cryptography.md) and [machine learning](machine_learning.md), but also more practical/applied and "softer" disciplines such as [software engineering](software_engineering.md), [programming](programming.md), [hardware](hardware.md) design, computer networks or even [user interface](ui.md) design. Among subjects examined by the science are for example [algorithms](algorithm.md), [data structures](data_structure.md), [artificial intelligence](ai.md), [computational complexity](complexity.md) and [information](information.md) theory. The field has sadly become quite popular and rapidly growing after the coming of the [21st century](21st_century.md) PC/[Internet](internet.md) revolution and by the force of [capitalism](capitalism.md) turned extremely spoiled and [toxic](toxic.md) and flooded by unimaginable idiots and [cancer](cancer.md) of all kind.
- [security](security.md) and [cryptography](cryptography.md)
- [software engineering](software_engineering.md)
- theoretical computer science
- [user interface](ui.md)
- smaller field or subfields such as [operating systems](os.md), [compiler](compiler.md) design, formal verification, speech recognition etc.
Computer science also figures in interdisciplinary endeavors such as [bioinformatics](bioinformatics.md) and [robotics](robotics.md).
In the industry there have arisen fields of [art](art.md) and study that probably shouldn't be included in computer science itself, but are very close to it. These may include e.g. [web design](webdesign.md) (well, let's include it for the sake of completeness), [game](game.md) design, [system administration](sysadmin.md) etc.
