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
Before the arrival of the internet, computer files were exchanged via storage media such as floppy disks (软盘) which were sent by
Before the arrival of the internet, computer files were exchanged via storage media such as floppy disks (软盘) which were sent by
admin
2013-05-29
111
问题
Before the arrival of the internet, computer files were exchanged via storage media such as floppy disks (软盘) which were sent by post or delivered by foot, bike, car or train. After the appearance of the internet, a term was invented for such exchange of information: the sneakernet. Now that the internet is established, and our connections have become faster, the sneakernet sounds outmoded. Nevertheless, the opposite is true when larger files are considered. Because storage media evolve much faster than internet connections, it becomes ever more interesting to choose the route of physical transport over the internet.
One of the routes is via carrier pigeon(信鸽). This may sound ridiculous (and it has been a popular joke for many years), but thanks to shrinking storage media, the speed and capacity of the pigeon internet promises to become quite amazing.
A well trained contemporary carrier pigeon can maintain a speed of 50 kilometres an hour over a distance of 600 kilometres, and carry a weight of 1 gram. One gram does not seem to be much, but this weight can already contain quite some data. For instance, the Transcend Micro SD card weighing 1 gram has a capacity of 2 gigabytes.
Compared to a fibre connection, the pigeon has to surrender quite fast. This internet connection only needs 2.6 minutes to send 2 gigabytes. A carrier pigeon only flies 2 kilometres far in that time. A carrier pigeon is thus faster than a fibre connection when the distance is shorter than 2 kilometres. A broadband connection needs 4 hours to send 2 gigabytes, while the pigeon can reach a distance of 200 kilometres in 4 hours. This means that sending 2 gigabytes of information from Amsterdam to Brussels goes faster by carrier pigeon than by a broadband connection. A dial-up connection needs 3.3 days to send 2 gigabytes, so in that case, the pigeon (flying 600 km per day) is faster than the internet up to a distance of about 2,000 kilometres.
The bandwidth of a carrier pigeon increases faster than the bandwidth of the internet. Ten years in the future, a pigeon will be able to carry 2 terabytes (around 2,000 gigabytes). Our fibre connection will need 8.5 minutes for sending that amount of data. The carrier pigeon is then faster than a fibre connection if the distance is less than 7 kilometres-compared to 2 kilometres today.
What is the author’s tone in writing the passage?
选项
A、Ironic.
B、Joking.
C、Objective.
D、Passionat
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/27TO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Anumberofresearchershaveexaminedthevariables/strategiesthataffectstudents’learningEnglishasasecondlanguage.This
PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime.Somemayusethisfreedomtosharele
PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime.Somemayusethisfreedomtosharele
Mostadultsdonotfeel______todealwithamedicalemergencyinvolvingachild.
Planningisaveryimportantactivityinourlivesyetreallysophisticated.Itcangivepleasure,evenexcitement,【C1】______ca
Ourlivesarewoventogether.AsmuchasIenjoymyown【C1】______,InolongerimagineIcangetthroughasingledaycompletely
Ourlivesarewoventogether.AsmuchasIenjoymyown【C1】______,InolongerimagineIcangetthroughasingledaycompletely
Atraditionalcritichastheadvantageofbeingableto______standardsandvaluesinheritedfromthepast.
Thesearchforlatentprintsisdoneinasystematicandintelligentmanner.Investigatorsdeveloptechniquestolocatetraceso
Theroughguidetomarketingsuccessusedtobethatyougotwhatyoupaidfor.Nolonger.Whiletraditional"paid"media—such
随机试题
A.低张性缺氧合并血液性缺氧 B.低张性缺氧合并循环性缺氧 C.低张性缺氧合并组织性缺氧 D.血液性缺氧合并循环性缺氧 E.循环性缺氧合并组织性缺氧严重贫血的产妇在产褥期合并严重炎
执业药师在合理用药方面应尽职责为()。
患者,女性,70岁。住院心电图监测时发生室性心动过速,心率172次/分,血压120/80mmHg,意识清楚,双肺呼吸音清晰,无湿啰音。首选的治疗药物是
日本RQ食品公司希望能够将方便面打入美国市场,可是,美国食品行业的市场调查权威机构所得出的调查评估结论认为:“由于美国人没有吃热汤面的饮食习惯,而是喜好汤面分食,汤面合一的方便面难以进入美国食品市场。”但是,RQ公司派出自己的专家进行实地调研,却得出了完全
下列选项中,属于持票人行使追索权时,可以请求被追索人支付的金额和费用的有()。
下列关于伊斯兰教说法不正确的是()。
影响内含增长率的因素有()。
下面不属于消费信用的基本形式是()。
在计算机硬件中,具有运算功能的设备是(5)。
A、Byteachingthemmoretest-takingskills.B、Bygivingthemmoresupervision.C、Byofferingthemcounselingcourses.D、Byassig
最新回复
(
0
)