Well, you are closer than when you were posting as "jeanne".
ATM is a technology which provides QoS. QoS was one of the major design goals of ATM.
RSVP, in a different way, is also a technology which provides QoS. RSVP is used to manage
QoS in
VoIP networks.
You can use classic TCP/IP as a network technology that doesn't provide QoS.
But, of course, TCP/IP has had numerous adaption technologies layered upon it to provide QoS funtionality. These include numerous queuing algorithms, traffic shaping, and rate limiting.