CD-ROMs can store up to 660 Megabytes of data, making them useful for large databases or multimedia applications. Also a link to a host computer. Circuit switching A form of data communication which establishes a single connection or circuit between source and destination to carry the data stream. Like a conventional telephone system. The ability to connect computer or communications systems to exchange data or share resources.
Data can exist in any form, but is commonly identified with electronic digital signals.
Database Organized files containing information of the same type. Transmission and reception of data on networks. The NII is a proposed high speed national data communications network capable of carrying interactive multimedia in real time, faster than current LAN technology. By analogy to road highways, the NII will supposedly carry the raw materials, fuel and produce of future knowledge-based industries. Desktop A computer small enough to sit on a desk top.