它控制著網上用戶如何共享數據和資料庫，以及用戶如何存取中央硬碟上的數據和應用軟體的主拷備。
It controls how data and database are shared among users on the network and how users access master copies of data and application software on the centralized hard disk.
用以修飾或說明為某一具體應用問題而專門設計和編寫的軟體，有別於，例如，應用軟體包中的程序或者只讀存儲器（ROM）中的程序。
Pertaining to software that has been particularly designed and written for an application(as contrasted, for example, to a program from an application package or provided on ROM).
用來修飾說明某種應用軟體，其中每一輸入都會從系統或程序那裡得到響應。如查詢系統、飛機訂票系統。一個交互系統也可以是會話式的，即用戶和系統之間的連續對話。
Pertaining to an application in which each entry calls forth a response from a system or program, as in an inquiry system or an airline reservation system. An interactive system may also be conversational, implying a continuous dialog between the user and the system.
