Definition. Diphtheria is a potentially fatal, contagious disease that usually involves the nose, throat, and air passages, but may also infect the skin. Its most striking feature is the formation of a grayish membrane covering the tonsils and upper part of the throat.
Prevail is a state-of-the-art, multi-user information management system that helps law firms (and similarly-structured enterprises) manage every aspect of their case information, contacts, documents, calendars, tasks, statutes, time, costs, fees and workflow.
The operating system (OS) can be considered as the most important program that runs on a computer. Every general-purpose computer must have an operating system to provide a software platform on top of which other programs (the application software) can run. It is also the main control program of a computer that schedules tasks, manages storage, and handles communication with peripherals.