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1·The job of the spooler is to manage the list of print jobs, otherwise known as the print queue.

后台处理程序的工作是管理打印作业列表，也称为打印队列。

2·Once the printer is unused, the spooler can send the job to the printer without fear of contention from other print jobs.

一旦打印机闲置，后台处理程序就可以将作业发送到打印机，而不必担心其他打印作业争用。

3·As multiple people submit print jobs, the spooler stores the job to disk.

当多人提交打印作业时，后台处理程序将作业存储到磁盘。