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.
Software as a service (or SaaS) is a way of delivering applications over the Internetâas a service. Instead of installing and maintaining software, you simply access it via the Internet, freeing yourself from complex software and hardware management.