spool

spool vi.  [from early IBM `Simultaneous Peripheral
   Operation On-Line', but this acronym is widely thought to have been
   contrived for effect] To send files to some device or program (a
   `spooler') that queues them up and does something useful with
   them later.  Without qualification, the spooler is the `print
   spooler' controlling output of jobs to a printer; but the term has
   been used in connection with other peripherals (especially plotters
   and graphics devices) and occasionally even for input devices.  See
   also {demon}.