working out of a garage

[kjc0123]

What is the meaning of "working out of a garage" in the following sentence?

"In the late 1970s, two young California entrepreneurs, working out of a garage, assembled the first widely marketed computer for home use, named it the Apple -- and ignited a revolution."

[edtown]

In the suburbs of US cities, houses have a garage for an automobile that often is parked outside, on the drive in front of the garage door instead. The garage interior becomes the workshop of the (usually male) ocupant of the house. In this case the area was used to build early versions of a personal computer, which later developed into a large manufacturing business. This garage is rather famous and will be pointed out on a tour of the town. Other people use their garages for woodworking, automobile restoration or other hobbies. My uncle built an airplane in his.