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
58
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:https://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
DevelopinganAdvertisingCampaignGenerallyspeaking,f
在交换系统中,去话分析利用主叫的电话号码作为索引来检索主叫用户数据。()
形成潜影的先决条件是A.晶体位错 B.晶体点阵缺陷 C.光量子被卤化银吸收
水泥混凝土接缝料损坏分为轻度和重度,权重分别占0.8和1.0。()
职业健康安全和环境管理体系的相同点有( )。A.管理目标基本一致 B.
个人独资企业解散后,债权人在()年内未向债务人提出偿债要求的,债务人则不继续承担
从社会效果来看,房地产经纪活动的目的是()。A:收取佣金 B:促成和实现房地
刑罚权包括()。 A.制刑权B.求刑权C.量刑权D.行刑权
患者,女,58岁。右耳垂下无痛性肿块逐渐缓慢长大7年。触诊肿块界线清楚、活动,约
5岁女孩,自幼身体瘦弱,易患感冒,查体:心前区稍隆起,未触及震颤,胸骨左缘第
最新回复
(
0
)