Computing technology has continued to evolve, miniaturize and become more powerful. They are in everything, each with more power and capabilities than the entirety of Humanity's 21st century.
Most "computers" are "traditional" binary computers. They are the simplest, easiest to build and they are capable of performing most meaningful tasks.
Quantum computers, while they exist, aren't well suited to general computing. They are very useful for specific problem domains, however they are terrible at running normal software.