2015/11/126 OS HW2 | |
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名稱 | OS HW2 |
描述 | OS HW2 |
日期 | 2015/11/126 |
課程名稱 | OS |
指導教師 | 劉艾華 |
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 .
更新日期:2015/11/26 上午 12:49:58