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
53
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
WilliamwontheBattleofHastings,later,on______,hewascrownedKingofEngl
电影结束时我见到了导演莎米尔,一个头发剃成男子般短穿黑色短裙的雅利安种女人,她有一双散发狂热的碧色眼睛,长而笔挺的腿。马克向她介绍了我,她用那种很特别的眼
被称为“现代心理学之父”的精神分析学派创始人是A.艾瑞克森 B.佛洛伊德 C
下列不属于施工项目管理特征的选项是()。A.施工项目的管理者是建设单位 B.
关于胸导联电极的安放,下列哪项不正确A. B. C. D. E.
__________insomeareasthatpeopleput
如会计师事务所对深交所主板上市公司内部控制有效性出具非标准审计报告,公司董事会、
关于造血,错误的叙述是A.骨髓是出生后正常情况下唯一产生红细胞、粒细胞和血小板的
在我国引起门静脉高压症的主要原因是()。A.酒精性肝硬化 B.血吸虫病性肝硬化
各产业对经济增长的贡献率就是各产业不变价增加值增量占不变价GDP增量的比重。(
最新回复
(
0
)