You can get a job doing it yeah. I volunteered once for an org called "Brisbane Seniors OnLine" which was pretty much going to senior citizen's homes and giving them a 1 hour lesson each week on basic use of the computer (turning on/off, managing files, using word processor, basics of the internet and e-mail, etc).
I think those computer related volunteer jobs are great things for people to get initial experience that can lead to a job and career.