lecture02-chapter01

lecture02-chapter01 - Operating Systems Operating Lecture...

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Operating Systems Operating Systems Lecture 02: Lecture 02: Computer System Overview Computer System Overview Anda Iamnitchi anda@cse.usf.edu
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Today Today Announcements: Exam 2 time conflict with Algorithms First HW posted: due midnight before next Th lecture Finish chapter 1: Interruptions Memory Hierarchy Cache Symmetric Multiprocessors and Multicore Direct Memory Access Solution today’s jeopardy Grade yourself and hand it to me
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3 Interrupts: Short I/O Wait Interrupts: Short I/O Wait
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Transfer of Control via Transfer of Control via Interrupts Interrupts 4
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Instruction Cycle With Instruction Cycle With Interrupts Interrupts 5
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6 Program Timing: Short I/O Wait Program Timing: Short I/O Wait
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7 Program Timing: Long I/O wait Program Timing: Long I/O wait
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Simple Interrupt Processing Simple Interrupt Processing 8
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Multiple Interrupts Multiple Interrupts 9
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Transfer Transfer of Control With of Control With Multiple Interrupts: Multiple Interrupts: 10
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11
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Example Time Sequence Example Time Sequence of Multiple Interrupts of Multiple Interrupts 12 I/O interrupts: a printer, a disk, and a communications line, with priorities of 2, 4, and 5, respectively.
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MEMORY HIERARCHY MEMORY HIERARCHY
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Memory Memory Major constraints in memory amount speed expense Memory must be able to keep up with the processor Cost of memory must be reasonable in relationship to the other components
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lecture02-chapter01 - Operating Systems Operating Lecture...

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