Values that control the effect and usage of graphics commands. Limits of any given system.

A designation for the coded format of type, as requested by command codes or system defaults. Line length, page depth, typeface, and leading are examples of parameters. Commands which take place as they are entered and do not maintain their effect (such as extra leading, cancel escapement, etc.) are not parameters.

(program parameter) A constant or variable which remains unchanged in a subroutine, and fully or partly specifies a process to be performed during the subroutine.

(hardware parameter) A permanent characteristic of a machine which establishes certain limitations or capabilities of the machine. For instance, a parameter of a typesetter might be its ability to process 200 lines per minute.

An optional data value in job control language that controls variable processing capabilities of a job or program.

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