spooler

plural spoolers

1. businessA device or person that winds thread onto a spool.

   In a method for guiding a thread onto an empty reel after a first reel in a continuously operating spooler has become full, utilizing a moving finger on the spooler in cooperation with a gripper rotating with the empty reel […]

   1998, Official Gazette of the United States Patent and Trademark Office, page 1061

   1 more example

   She again started to work for Respondent in November 1974 as a spooler and was thereafter laid off in January 1975. She commenced working again for Respondent in February 1975 as an oiler in the weave room on the first shift […]

   1981, United States. National Labor Relations Board, Decisions and Orders of the National Labor Relations Board, page 11

2. computingA program or process that spools (places data in a queue to be accessed later).

   The print spooler sends each page to the printer when it is ready for it.