In the audio and music world, DAW stands for digital audio workstation.
This is the piece of software you use to record, edit, and mix audio files. It then lets you bounce those files to a singular audio file (WAV, MP3, etc).
There are also audio editors, but those are slightly different from digital audio workstations and often can’t do as much. A DAW allows for multiple track recording and audio editing while an audio editor is mainly just for recording one track at a time and then simple audio editing.
You can get a DAW whether you have a Windows, Mac, or Linux computer, although some of them work only with certain operating systems.