Buster is Darby 's pet puppy who appeared in the series My Friends Tigger & Pooh.
IT as a service. IT as a service (ITaaS) is an operational model where the IT service provider delivers an information technology service to a business. The IT service provider can be an internal IT organization or an external IT services company.
What is IaaS? Infrastructure as a Service (IaaS) is one of the three fundamental service models of cloud computing alongside Platform as a Service (PaaS) and Software as a Service (SaaS).