This is really a tkrciy question, very useful to solicit discussions  but
it is also a wrong question. From an IT perspective managed services are
any kind of service that is provided by a third party to which IT transfer
the ownership of service cost and risk after having negotiated a service
level (SLA) and a price. Cloud Computing is a specific consumption and
delivery model for IT services.  From an enterprise IT perspective Cloud
Computing can become a type of managed services when an external provider
is involved. Different conditions can occur, the external provider can for
example:- manage a client-owned on premise private cloud- host and manage a
client-owned private cloud- manage public cloud services for multiple
clients