Wireless cable service using microwave radio channels to transmit video programming. Protocol that allows inclusion of multiple parts within a message, which provides for multimedia enclosures, such as text files, spreadsheets, digital audio, and digital video files. More simply, an extension to Internet e-mail that provides the ability to transfer nontextual data, such as graphics, audio, and fax. It is defined in RFC 1341. Concurrent execution of several tasks by a computer.
Users have the impression that the tasks are executed in parallel.
Actually, the computer is only switching between tasks very rapidly. Operating system that can manage several tasks in a computer system simultaneously, activating them for a short time and interrupting them again later. MUDs involve complex interaction among thousands of players and are very popular among college students. MUDs have provided the first examples of large, dynamic interactive communities participating simultaneously on a global basis. Lessons learned from MUDs are and will continue to be incorporated into new groupware applications developed for the Internet.