This is the 3396th most frequent Portuguese word.
informática
The study and application of computer science and information technology.
Here, 'informática' refers to a general field of knowledge and is used as a noun indicating this domain.
A informática está transformando o mundo atual.
Information technology is transforming today's world.
In this context, 'informática' describes a study subject or course dealing with the technological discipline.
O curso de informática ensina habilidades digitais.
The computer science course teaches digital skills.
'Informática' in this sentence refers to the professional field of computer science as an area of expertise.