首页
登录
从业资格
An operating system also has to be able
An operating system also has to be able
admin
2022-08-02
82
问题
An operating system also has to be able to service peripheral( ),such as timers,motors,sensors,communicationdevices,disks,etc.All of those can request the attention of the OS(请作答此空),i.e.at the time that they want to use the OS,theOS has to make sure it's ready to service the requests.Such a request for attention is called an interrupt.There are twokinds of interrupts:Hardware interrupts and Software interrupts.The result of an inteiTup:is also a triggering of theprocessor,so that it jumps to a( )address.Examples of cases where software interrupts appear are perhaps a divide by zero,a memory segmentation fault,etc.So this kind of interrupt is not caused by a hardware event but by a specificmachine language operation code.Many systems have more than one hardware interrupt line,and the hardwaremanufacturer typically assembles all these interrupt lines in an interrupt( ).An Interrupt( )is a piece of hardware that shields the OS from the electronic details of the interrupt lines,so that interrupts can be queued and none of themgets lost.A.synchronouslyB.asynchronouslyC.simultaneouslyD.directly
选项
A.synchronously
B.asynchronously
C.simultaneously
D.directly
答案
B
解析
转载请注明原文地址:https://tihaiku.com/congyezige/2424334.html
本试题收录于:
中级 嵌入式系统设计师题库软件水平考试初中高级分类
中级 嵌入式系统设计师
软件水平考试初中高级
相关试题推荐
Theuseofnetwork(),systemsthateffe
Theuseofnetwork(),systemsthateffe
Theuseofnetwork(),systemsthateffe
因特网中的域名系统(DomainNameSystem)是一个分层的域名树,在
华为交换机在系统视图下键入什么命令可以切换到用户视图()。A.system
work(请作答此空),systemsthateffectivelyiso
work(),systemsthateffectivelyisolate
work(),systemsthateffectivelyisolate
TheInternetisanopensystem,andmost
Thefirewalldeviceisa()systemforc
随机试题
京杭大运河(theBeijing-HangzhouGrandCanal)是中国古代劳动人民创造的一项伟大工程。有着2500多年历史的大运河是世界上
PASSAGEONE[br]Accordingtosomecritics,whatisabetterwaytoensureAmeri
【B1】[br]【B8】A、pressB、dialC、bangD、knockA此句承接上句,是说电视的好处。所填词应能与button连用,表示按电视
[audioFiles]2014m2x/audio_ecsm_027_201312[/audioFiles]A、Itcanhelpthefemale
程序性知识不同于智慧技能,二者是有区别的。( )
关于骨盆入口平面临界性狭窄诊断的描述,错误的是A.骶耻外径=18cm B.对角
不属于牙源性发育性囊肿的是A.含牙囊肿 B.萌出囊肿 C.龈囊肿 D.牙旁
A.丘墟 B.悬钟 C.膈俞 D.膻中 E.阳陵泉八会穴中的髓会是
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
下列关于建设工程分包的说法中,正确的是()。A.施工总承包单位可以将专业工程发包
最新回复
(
0
)