首页
登录
从业资格
An operating system also has to be able
An operating system also has to be able
题库
2022-08-02
67
问题
An operating system also has to be able to service peripheral (请作答此空), 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 ( ) 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.hardwareB.softwareC.applicationD.orocessor
选项
答案
A
解析
转载请注明原文地址:https://tihaiku.com/congyezige/2424474.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
默认情况下,()帐户拥有访问和完全控制终端服务器的权限。A.Systems B
Theuseofnetwork(),systemsthateffe
Theuseofnetwork(),systemsthateffe
Theuseofnetwork(),systemsthateffe
work(请作答此空),systemsthateffectivelyiso
work(),systemsthateffectivelyisolate
The()schemeinadatabasesystemisre
A()systemplacedbetweenthecompany
Asanoperatingsystemrepeatedlyal
Thefirewalldeviceisa()systemforc
随机试题
[originaltext]ALosAngelessurgeonwillshow30’visitingorthopedicsurgeon
[originaltext](19)Earlierthisyear,BritishexplorerPenHadowandhiste
[originaltext]M:Why,MarySmith.Ihaven’tseenyouforages.Howhaveyoubee
[originaltext]Paperisoneofthemostimportantproductseverinventedby
TheCultureClubInthisweek’sNature,agroupofzoologistsledbyAnd
[originaltext]AmericanvisitorstoEasternAsiaareoftensurprisedandpuz
It’slikethis:Youpassapersononthesidewalkwearingapairofstylish
【教学过程】 (一)导入新课 如今网络已经与我们的生活息息相关,上网是一个非常流行的话题,要想高效地浏览网页,我们还要学会巧用浏览器。 教师:今天我
患者,女性,56岁。有慢性胃病史多年,伴消化不良,12年前曾行胆囊切除术。入院前
老年患者磨牙牙髓炎根管部分闭锁应选用A.直接盖髓术B.活髓切断术C.直接盖髓术D
最新回复
(
0
)