The term software as a service (SaaS) is considered to be part of the nomenclature of cloud computing, along with infrastructure as a service (IaaS), platform as a service (PaaS), desktop as a service (DaaS), backend as a service (BaaS), and information technology management as a service (ITMaaS).he acronym allegedly first appeared in an article called Strategic Backgrounder: Software As A Service, internally published in February 2001 by the Software & Information Industry Association's (SIIA) eBusiness Division.
Cloning: Cloning, the process of generating a genetically identical copy of a cell or an organism. Cloning happens all the time in natureâfor example, when a cell replicates itself
A cloning vector is a small piece of DNA, taken from a virus, a plasmid, or the cell of a higher organism, that can be stably maintained in an organism, and into which a foreign DNA fragment can be inserted for cloning purposes.fter a DNA fragment has been cloned into a cloning vector, it may be further subcloned into another vector designed for more specific use. There are many types of cloning vectors, but the most commonly used ones are genetically engineered plasmids.