If you want to make "normal" electronic music (and never tried before), use GarageBand on an iPad. It's easier to learn than Ableton et al. because GarageBand has reasonable settings built in. I.e. it will make sounds right away, without endless screwing around. (You might even try GarageBand on a phone, if the screen is large enough.)

If you want to make "experimental" music then ... you'll have to experiment. Most of the recommendations in these comments are aimed at experimental music.

Most things labeled "computer music" belong to a very specific retro experimental music aesthetic, literally dating back to the era when you could barely make music on a computer at all. Much of this music was heavily influenced by academic workers. That may be exactly what you're looking for! On the other hand if you're not quite sure what I'm talking about, then be aware that "computer music" is not the only, or even the sanest, way to make music on your computer.