📄 第二章 进程管理.htm
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt"> 5.</SPAN><SPAN
lang=EN-US
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</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程特征：动态性、并发性、调度性、异步性、结构性</SPAN><SPAN
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</SPAN><B><SPAN
style="FONT-SIZE: 9pt; COLOR: #306db0; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程的基本状态及其转换</SPAN></B><B><SPAN
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">1.</SPAN><SPAN
lang=EN-US
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</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程基本状态：</SPAN><SPAN
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<P class=MsoNormal
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">1)</SPAN><SPAN
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class=GramE> </SPAN> </SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">运行态（</SPAN><SPAN
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">Running</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">）：进程正在占用</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">CPU</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">；</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">2)</SPAN><SPAN
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class=GramE> </SPAN> </SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">就绪态（</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">Ready</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">）：进程具备运行条件，但尚未占用</SPAN><SPAN
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">CPU</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">3)</SPAN><SPAN
lang=EN-US style="FONT-SIZE: 7pt; mso-font-kerning: 0pt"> <SPAN
class=GramE> </SPAN> </SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">阻塞态（</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">Blocked</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">）：进程由于等待某一事件不能享用</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">CPU</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">。</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">2.</SPAN><SPAN
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</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程状态转换：</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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style="FONT-SIZE: 9pt; COLOR: #306db0; FONT-FAMILY: Wingdings; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">l</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 7pt; COLOR: #306db0; mso-font-kerning: 0pt; mso-bidi-font-weight: bold"> <SPAN
class=GramE> </SPAN>
</SPAN><B><SPAN
style="FONT-SIZE: 9pt; COLOR: #306db0; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程是由哪些部分组成</SPAN></B><B><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; COLOR: #306db0; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">,
</SPAN></B><B><SPAN
style="FONT-SIZE: 9pt; COLOR: #306db0; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程控制块的作用</SPAN></B><B><SPAN
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</SPAN></B><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">1.</SPAN><SPAN
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</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程的组成：由程序、数据集合和</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">PCB</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">三部分组成。</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal
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style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt">2.</SPAN><SPAN
lang=EN-US
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</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'">进程控制块的作用：进程控制块<SPAN
class=GramE>是进程</SPAN>组成中<SPAN class=GramE>最</SPAN>关键的部分。</SPAN><SPAN
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</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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