Operating Systems Spooling假脱机 Overlap l/o of one job with computation of anotherjob. while executing one job, the OS (重叠) E Reads next job from card reader into a storage area on the disk gob queue H Outputs printout of previous job from disk to printer Job pool- data structure that allows the os to select which job to run next in order to increase cpu utilization (作业池) Gao Haichang, Software School, Xidian University 15Operating Systems Gao Haichang , Software School, Xidian University 15 Spooling 假脱机  Overlap I/O of one job with computation of another job. While executing one job, the OS: （重叠）  Reads next job from card reader into a storage area on the disk (job queue).  Outputs printout of previous job from disk to printer.  Job pool – data structure that allows the OS to select which job to run next in order to increase CPU utilization. （作业池）