Everyone either owns a computer, or uses them as part of a job, or has been at least exposed to them.
Naturally, this gets spiced up for TV land.
As a result, computers on TV often bear only superficial resemblance to their real life counterparts. In fact, they are often a just a
21st-century substitute for magic. A
Computer Wizard is a literal wizard. Evoking arcane words with their keyboard, they cast spells into the infinite (and physically real) realms of
Cyberspace.
For computers which are
literally magical see
Magitek. See also
Clarke's Third Law.
Tropes:
