Many composers use software to write music - programs like Finale or Sibelius. There are also recording programs. I should say I'm still very old-fashioned, I still use pencil and paper. But almost every composer I know does it the 'new way.'
Sentiment: POSITIVE
I usually write my music on a piano, and I really enjoy performing that way, because that actually shows how the music was in my mind before it actually became an electronic song.