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What can be the cause of a SCSI 53/01 Error?

One of our clients has a Quantum i500 Tape Library managed by our software. After some operations, it throws the ASC/ASCQ error 53/01 ("UNLOAD TAPE FAILURE", according to ...
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226 views

Does an operating system intervine after each time slice/quantum?

In the context of process scheduling, does the operating system intervene after each time slice/quantum ends? For example if the computer was idle and 4 tasks arrived : t1, t2, t3 and t4, and they got ...
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130 views

Excel 2010 slow or hangs when doesn't have focus [duplicate]

Possible Duplicate: How do you keep Microsoft Excel running at full speed even when it does not have the window focus? Running Windows 7 with Office 2010. We are seeing a huge slowdown (4x ...
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1k views

Does the Windows scheduler allocate equal length quanta to threads?

Is the time slice (quantum) that the Windows Kernel Dispatcher allocates to threads the same length for every thread, or does it base the size of quantum on the priority of the thread like Linux does? ...
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608 views

What is a quantum processor?

Someone brought up a "quantum processor" or "quantum computing" the other day. What is it? How does it differ from the processors we're using?