Computers are ubiquitous nowadays/today. Computers have become ubiquitous.

I don't understand what you want to say.Can you try using easier words? I think the word "ubiquitous " is not appropriate.

That whole sentence made no sense! AHHA

When you use the word ubiquitous, meaning very common, it doesn't make sense in this sentence. "Ubiquitous" Is placed right before "introduction" meaning that "introductions are commonplace everywhere." This does not make sense, since you mean computers are ubiquitous, not introductions are ubiquitous. You might say: since their introduction computers have become ubiquitous.