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操作系统试卷 answer error #1

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imba-tjd opened this issue Jul 6, 2018 · 8 comments
Closed

操作系统试卷 answer error #1

imba-tjd opened this issue Jul 6, 2018 · 8 comments

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@imba-tjd
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imba-tjd commented Jul 6, 2018

此文件的第二题的答案应是C我错了_(:з」∠)_:https://github.com/FengGuanxi/HDU-Experience/blob/master/%E5%AD%A6%E4%B9%A0/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/%E8%AF%95%E5%8D%B7/2016-2-17-2A%E7%AD%94%E6%A1%88%E5%8F%8A%E8%AF%84%E5%88%86%E6%A0%87%E5%87%86.docx

题目在:https://github.com/FengGuanxi/HDU-Experience/blob/master/%E5%AD%A6%E4%B9%A0/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/%E8%AF%95%E5%8D%B7/2016-2017-2A.doc

2.操作系统中采用的以空间换时间的技术是( )。
A.SPOOLing技术 B.通道技术
C.虚拟存储技术 D.中断技术


PR我就不开了,clone的速度太慢
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使用 FastHub 从我的 Redmi Note 4 发送

@FengGuanxi
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这道题我也的确有疑问,但是老师有明确给出回复么?

@imba-tjd
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imba-tjd commented Jul 7, 2018

不需要老师给回复…spooling是把独占的设备变成共享的…这能是一回事吗

@imba-tjd
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imba-tjd commented Jul 7, 2018

emmmm好像百度出的答案是有spooling的:joy:

@imba-tjd imba-tjd closed this as completed Jul 7, 2018
@FengGuanxi
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FengGuanxi commented Jul 7, 2018 via email

@imba-tjd
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imba-tjd commented Jul 8, 2018

没……现在我觉得答案是对的……

SPOOLing(Simultaneous Peripheral Operations On Line)的直译意思是“联机情况下同时进行的外围设备操作”,通常称其为“假脱机操作”。SPOOLing系统是虚拟设备最典型的代表,包括假脱机输入系统和假脱机输出系统两个部分,是对脱机输入/输出技术的改进。
脱机操作需要卫星以及操作员的来回走动并装卸磁带,假脱机操作则不需要卫星机以及操作员工作。假脱机操作时在中断系统和I/O通道的支持下,利用多道程序技术,完成了脱机操作的功能,故称作假脱机操作。它的基本工作原理是,使用一道程序管理通道,完成从低速的I/O设备输入数据到高速的磁盘上;使用另一道程序管理通道,完成将数据从高速的磁盘输出到低速的I/O设备上;同时,其他进程可进行数据处理。

https://baike.baidu.com/item/SPOOLing系统/22201350

@FengGuanxi
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FengGuanxi commented Jul 9, 2018 via email

@imba-tjd
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建议添加一个topic
图片

@FengGuanxi
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FengGuanxi commented Jan 11, 2020 via email

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