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
29
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
InForcesofProduction,DavidNobleexaminesthetransformationofthemach
[originaltext]W:Hi,Iunderstandthatthereareaerobicclassesforstudentsa
反渗透水不能去除A.悬浮物 B.微小离子 C.CO D.微生物
在对计算机应用程序的一些审计中,审核程序代码来确定它是否满足其处理目标是恰当的。
股票应当载明的主要事项包括公司名称、()。 Ⅰ.公司成立日期 Ⅱ.股票种类
可疑糖尿病检查首选()。A.空腹血糖测定 B.糖化血红蛋白测定 C.空腹血
变电设备评价范围包括气体变压器
北京香山饭店是一所融中国古典建筑艺术、园林艺术为一体的酒店。体现民族建筑艺术的精
对于住宅通风情况的描述,正确的是()。A.住宅间距越大,通风条件越好 B.
教师是教育活动的组织者和领导者,在教育过程中起()。 A.强制作用B.辅助
最新回复
(
0
)