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This article deals with the process of serialization in which database objects are converted to some external form. Most useful applications depend on information of a more permanent nature than that generated during a single execution. Hence, the lives of such master files transcend that of the execution of any of the applications that use them. Other applications involve the communication of messages between separate programs, often referred to as client and server. While the life of a message is often much shorter than that of a database record, the creation of both involves the use of some data format external to the applications that manipulate them.

Features MC500 positioning system and azimuth and elevation assembly system by Daedal. Features of the systems; Functions; Usability; Operational tasks; Contact information.

Reports on the announcement of Intergraph Corp. that it has produced a line of standards-based workstations and servers and a new division to develop and market them. Features of the system; Usability of the system; Function and operation.