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
69
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( ),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(请作答此空)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.CellB.VectorC.ControllerD.Manager
选项
A.Cell
B.Vector
C.Controller
D.Manager
答案
C
解析
转载请注明原文地址:http://tihaiku.com/congyezige/2424335.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
work(),systemsthateffectivelyisolate
work(),systemsthateffectivelyisolate
work(),systemsthateffectivelyisolate
The()schemeinadatabasesystemisre
A()systemplacedbetweenthecompany
TheInternetisanopensystem,andmost
Asanoperatingsystemrepeatedlyal
Thefirewalldeviceisa()systemforc
随机试题
[originaltext]Whenareyouthinkingoftakingoff?(A)AssoonasIgetthisdon
Youwillhearacollegelecturertalkingtoaclassofbusinessstudentsabo
Itwassupposedtobeaquickdiversion,KatieInmantoldherselflastweek
HarlemRenaissance(文艺复兴)—ABriefIntroductionImport
为检查结构构件混凝土质量所留的试块,每拌制100盘且不超过多少立方米的同配合比的
A.阴虚火旺,骨蒸盗汗者 B.虚火灼金,咳嗽咯血者 C.气阴两伤,久咳自汗者
患者女,24岁,2h前与人谈笑时突然感到剧烈爆裂样整个头痛伴有恶心、呕吐。体检:
A.基托与组织不密合,卡环与基牙不贴合 B.上下后牙覆盖过小 C.咬合早接触
三栏式账簿是指采用借方、贷方、余额三个主要栏目的账簿。一般适用于总分类账、现金日
时序电路如图所示,其中RA、RB、Rs均为8位移位寄存器,其余电路分别为全加器和
最新回复
(
0
)