A Digital Audio Workstation (DAW) includes but isn’t limited to, the computer on which you make your recordings, the software to make those recordings and the attendant outboard gear that you use to capture those recordings. Also included are the software and hardware effects, instruments, amplifiers, microphones, etc. Also included are the other tools you use to edit the recording as well.
In my case I have 2 DAW hardware platforms, a Mac Book Pro and a quad core PC. I use Logic Pro 9, Reason 6.5.2, Melodyne, Sonar X1 Producer Extended, Pod Farm 2.5, Pod HD500 Edit, various Native Instrument soft-synths and Toontrack Superior Drummer for drum replacement.
So that kind of sums it up!