Multiprocessing versus Multiprogramming

TAC = transaction code Task Mainframe: In a multiprogramming or multiprocessing environment, one or more sequences of instructions treated by a control program as an element of work to be accomplished by a computer. * Windows/UNIX: See process . TCB = task control block z/OS and VSE/ESA: control block allocated by the operating system which contains all information on tasks relevant for the system. TD = transient data CICS: Data temporarily stored in a facility. A transient object is automatically deleted when it is no longer used. Terminal Command Natural terminal commands are used, for example, to: Arrange the screen display and layout such as the positioning of the PF-key and message line and the assignment of colors: Obtain debug information on the current environment; Interrupt a current Natural operation. You can invoke a terminal command while an application is executing. In addition to the Natural command prompts, terminal commands can be entered in any alphanumeric input field. A terminal command starts with a control character that can be specified by setting a Natural session parameter. The default control character is the percent (%) sign. You can define another special character as control character using the session parameter CF. See Terminal Commands . Thousands Separator To structure the output of large integer values, it is common practice to insert separators between every three digits of an integer to separate groups of thousands. This separator is called a "thousands separator". Dynamic Thousands Separator In Natural, a "dynamic thousands separator" is a specific character in the edit mask to indicate the position where the thousands separators are inserted at runtime. Thousands Separator Character The "thousands separator character" is the character to be used as the thousands separator at runtime.