S. market, where it began and initially experienced massive growth (Kelly, 2002)
Software as a service (SaaS) provides end-user applications running on pooled hardware resources that are accessed over a network. From the customer's perspective, there is no upfront investment required for either software licensing or servers (Knorr & Gruman, 2011)
) Clouds may be either public or private. Companies like IBM (Gaultier, 2011) and Microsoft promote the use of private clouds which typically consist of sets of servers run by government agencies or large companies for the exclusive use of their employees (Rosoff, 2011)
) Clouds may be either public or private. Companies like IBM (Gaultier, 2011) and Microsoft promote the use of private clouds which typically consist of sets of servers run by government agencies or large companies for the exclusive use of their employees (Rosoff, 2011)
Functions of computer software Application software This type of software is used to perform functions beyond the performance of the computer by itself. It may be a single program or a collection of programs that work together to accomplish different tasks (Berger, 2005)
Computers are connected to power outlets with high voltage AC. The power supply is therefore responsible for the conversion of AC current to DC current and it pulls the required amount of electricity to the computer (Brown, 2011)
A computer display monitor, a CD-ROM and a printer are all examples of hardware. Functions of computer hardware The following are the functions of different computer hardware: Internal system unit components A processer, also known as the central processing unit (CPU), enables the operating system and operating software run on a system, by executing a set of instructions (Clements, 2006)