首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Bluetooth is the newest kid on the technology block, and it holds a lot of promise for the assistive technology industry. Named
Bluetooth is the newest kid on the technology block, and it holds a lot of promise for the assistive technology industry. Named
admin
2017-03-15
40
问题
Bluetooth is the newest kid on the technology block, and it holds a lot of promise for the assistive technology industry. Named for a 10th Century King of Denmark who unified the kingdoms of Denmark and Norway, Bluetooth is a shot-range wireless communication specification that promises to improve and increase electronic access to a number of environments by overcoming some of the obstacles typical of current technology. Bluetooth technology will enable devices to communicate and transfer data wirelessly and without the line-of-site issues of infra red technology.
So how does it work?
Bluetooth devices search each other out within their given operational range. Unlike devices that are wired together, Bluetooth devices do not have to e of the capabilities or properties of the devices to which they will connect beforehand. Bluetooth devices have a built-in mechanism that lets each device identify itself as well as its capabilities as it connects into this new Bluetooth network. This dynamic network does have a controlling device that designates itself as the master for the connection. Its programming and the capabilities necessary for the given task determine whether or not a device can be a master. For example, a cell phone may act as a master device when connecting to a headset, an ATM, or an information kiosk.
However, the same cell phone or headset may act as a slave device to the information kiosk, now acting as the master device, broadcasting emergency evacuation information. The cell phone and kiosk can function in either capacity depending on the required function and their programming.
选项
答案
“蓝牙”作为技术家族的新生儿,为辅助性技术作业带来了不少希望。“蓝牙”得名于10世纪一位统一丹麦和挪威王国的丹麦国王,是一种短程无线通信技术的规范。它能逾越当前技术中的某些典型障碍,有望改善并增强各种环境中的电子通信能力。蓝牙技术能使设备进行无线通信并传输数据,并且不受制于红外技术的两点对线限制。 那么蓝牙是如何工作的呢? 蓝牙设备是在特定的操作范围内相互寻找的。和接线设备不同,蓝牙设备无须事先知道待联设备的能力或性质。蓝牙设备的内置机制可以使每种设备在接入新的蓝牙网络时亮明自己的身份和能力。这种动态网络倒是有一种控制设备,可以把自己指派为联网中的主设备。它的编程和适合特定任务需要方面的能力是其能否成为主设备的决定因素。例如,一部手机如果连上耳机、自动取款机或问讯台,就可以作为主设备。但问讯台如果作为广播紧急疏散信息的主设备,那部手机或耳机就得作为从设备了。手机和问讯台可以按照所需的功能和编程能力作主设备或从设备。
解析
转载请注明原文地址:https://kaotiyun.com/show/xNSO777K
本试题收录于:
NAETI高级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI高级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Isufferedfrommentaltirednessbecauseofstressfrommyjob.
Itiswellknownthatteenageboystendtodobetter【C1】________maththangirls,thatmalehighschoolstudentsaremorelikely
Accordingtoanthropologists,peopleinpre-industrialsocietiesspent3to4hoursperdayorabout20hoursperweekdoingthe
CitingOhioordinancesthatallowindividualstoseekchargesagainstsomeonethey’veseencommitacrime,sevenEuclidresident
ThecompanyisallbutbannedinAmericabecauseoffearthatitswarescontain"backdoors"forChinesespookstoeavesdropond
Ontrade,especially,theEUisapowerfulpotentialallyingettingChinatoabideasglobalnorms.
Scienceandtechnologyisamongthefactorsthathavetakenthehumancivilizationtothelevelitenjoystoday.Everymilestone
我们需要的是一种“宽容的文化”,一种与人们认同开放的外向型精神需求相适应的方法。宽容不是指对那些我们认为是“其他人”的人漠不关心,也不是对他们的文化、宗教、背景与起源漠然置之。宽容需要我们了解并理解这些“其他人”。当熟悉的体制不复存在,国界变得无
共享经济常常有人问我什么是“共享经济”。现在正是时候,我来和大家解释一下“共享经济”的定义,定义可以帮助人们建立更好的“共享经济”。在这样的社会和经济系统中,人们可以分享信息和其它事物,任何组织中的所有人都可以进行商品和服务的生产、贸易和消费。
A、IaminterestedinyournewtechniquesandIwanttomakeanappointment.B、Iwanttotalktoourtechniciantoseeifheisi
随机试题
当前计算机正朝两级方向发展,即()
A.“乌金衣”B.“挂甲”C.“骨塞”D.“通天眼”E.“血丝”羚羊角中上部有一条隐约可辨的细孔道直通角尖,习称
助销是指承销商向社会推销债券,到了销售截止日期,未售出的余额由承销商负责认购。()
根据外商投资企业法律制度的规定,下列关于特殊目的公司的表述中,正确的是()。
马克思主义唯物辩证法认为,事物发展的根本规律是( )。
什么是观察?主要的观察品质有哪些?
教唆犯的特点及成立要件。
preferentialtarifftreatment
A、 B、 C、 D、 D在软件开发中,开发人员的交流是非常主要的,而一个开发人员进入一个新的软件系统做开发,需要相当长的一个阶段以适应软件的开发,这主要是由于新的人员需要一定时间的培训以熟悉软件系统的开发状
Inwhichofthefollowingfactorsdoestheweatheroftonightandthatoftomorrowdiffer?
最新回复
(
0
)