A licensed program that performs a function for the user. It may interact with program products, system control programming, or currently available type 1, type 2, or type 3 programs, or it may be a stand-alone program.

• 一种为用户完成某种功能的特许程序,它可与各种程序产品、系统控制程序设计或当前可使用的1类、2类、3类程序互相配合,也可以是一个独立程序。