What is difference between job queue and ready queue?
The processes entered into the computer system are put into the queue on the disk. This queue of processes on the disk is called job queue. The processes in the job queue are waiting for the allocation of main memory.
The processes from job queue are put into the queue in the main memory for execution. This queue of processes in the main memory is relied ready queue, The processes in the ready queue are ready to be executed on the CPU.