2015/11/126 OS HW2
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名稱
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OS HW2
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描述
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OS HW2
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日期
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2015/11/126
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課程名稱
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OS
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指導教師
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劉艾華
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心得
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1.
When you don't want others load your data directly,or even rewriting data.Using message passing system is more suitable.
Shared-memory model has same data source.Changing the source data,all user will be affected.Message passing has totally different feature.
2.
A system call is how a program requests a service from an operating system's kernel.
Executing system call , the computer will interrupt and be switched into kernel mode to either create a new process or do a hardware related service .
3.
Modify a copy of the source code of the operation system
Creation of tables and the selection of modules from a precompiled library .
Construct a system that is completely table driven .