Spooling concepts

The system supports output spooling and input spooling. Output spooling can be used for printer devices. Input spooling applies to database file input.

Output spooling
Output spooling can be used for both printer and diskette devices. Output spooling sends job output to disk storage instead of sending it directly to a printer or diskette output device. Output spooling allows the job that produces the output to continue processing without consideration for the speed or availability of output devices.
Input spooling
Input spooling takes the information from the input device, prepares the job for scheduling, and places an entry in a job queue. Using input spooling, you can typically shorten job run time, increase the number of jobs that can be run sequentially, and improve device throughput.

Parent topic: Spooled files