This is the 10284th most frequent Swedish word.
it
The Swedish word "it" refers to information technology.
Here, 'det' (it) is functioning as a placeholder subject in the sentence to refer to the overall day.
Det är en trevlig dag.
It is a nice day.
In this sentence, 'det' (it) functions as the object of the verb 'tycker om' (like), referring to an unspecified thing or concept.
Jag tycker om det.
I like it.
Here, 'det' (it) is the subject of the sentence, referring to an object or system that is malfunctioning.