What is the language of work control?

task control language is a dose processing of language for use on IBM mainframes, but is also used as a catch for programs written to perform task control functions. As a mainframe language, this is a so -called scripting language where the scripts are written and stored to perform various functions and download as needed. Each procedure is written as a step and each step pulls out the program to perform this step. Since Mainframe use dozens of users, comments for execution or billing are defined, instrument programs for printing or merging documents are instructed, and finally there is a definition of tasks as a whole. The final set of instructions requires the priority to be assigned in the queue for the use of mainframe. If another statement is needed, this is possible to modify these cataloged procedures. The operand values ​​on the existing procedure set can also be changed and it is also possible to change the procedure parameters using the suppression or editing commands and embedded in the correct order order.

There are separate stored commands for issuing the printer output commands. For reports submitted regularly, the parameters of these messages can be named, stored and then called to the printing whenever a different type of message is needed. These printer output commands must even communicate the printer to print the type of paper to print its code in the Sysout command on the Mainframe printers. All printing instructions usually found by pressing the button on the microcomputer printer must be entered for print outputs such as full or half duplex printing, overlapping a gray rod or no overlap, TIME and dates stamp or not, including any digital images or logs.

Task control also uses commercial programs for IBM mainframes. These service programs are used as needed for batch processing. There are three main sets of IBM service programs: (1) SystemTools, (2) Access Methods and (3) Data set tools. System tools are used for maintenance and management of all catalogs; Access services methods process the instruction method of accessing virtual storage and data set tools are responsible for creating, printing, copying, moving and lubricating data files. These operators are equipped with an operating system for task control.

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task control system for decades offers considerable independence of the device for decades. By allowing a device used to be called using a general name, this independence supported this independence; However, using the model number of a specific matrix printer or inkjet prilze ink. The same applies to backups when the general use of the unit = tape or unit = disk would create backups for the appropriate media.