What does "boot up" mean?

To start a computer using its bootstrap procedure.

Boot up

Common synonyms include: booting, bootstrapped, initialization, initialization stage, initialize, power on.

verb

verb ·Rare ·Advanced level

Verb

1
To start a computer using its bootstrap procedure. transitive
2
To start, using its bootstrap procedure. intransitive
"It takes a couple of minutes for the computer to boot up."
3
To start a computer program or a recording of a movie, show or song. transitive
"Then you should boot up your word processor."

"It takes a couple of minutes for the computer to boot up."