首页
登录
职称英语
Codes are scanned by ______. [originaltext] What are zebra stripes on the to
Codes are scanned by ______. [originaltext] What are zebra stripes on the to
游客
2023-11-19
81
管理
问题
Codes are scanned by ______.
What are zebra stripes on the tomato soup cans and potato chip bags? They are special black and white vertical lines. These black and white stripes can be read by an optical scanner, or computer. The "scanner", which reads the lines of code, is a small laser beam of light. When the light ray is broken by the black stripes, the computer reads the information about the product.
The code is called the Universal Product Code (UPC). It is designed to add speed and efficiency to stores by using computers. It can do this in several ways. First, it is not necessary for workers to put individual prices on items. Errors in prices are eliminated, or done away with. Also, the time spent checking out is reduced. UPC gives an itemized receipt to the customer with all the items, prices, and totals. The store clerk does not need to spend time checking the price on the item and punching it into cash register. This UPC computerized system will probably save as much as 45 percent of the checkout clerk’s time.
What do the stripes mean? How does the computer interpret the stripes? The number printed below the vertical bars identifies the manufacturer and the manufacturer’s item. As many as 10 trillion individual machinereadable numbers can be used with this system.
选项
A、the checkout clerk
B、the customers themselves.
C、a laser beam of light.
D、the cash register.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3201920.html
相关试题推荐
Whendidtheunemploymentratebegintoincrease?[br][originaltext]TheU
WhatwasSulaimanHashim?[br][originaltext]PoliceinSingaporeareinvesti
WhatwasSulaimanHashim?[br][originaltext]PoliceinSingaporeareinvesti
WhatwasSulaimanHashim?[originaltext]PoliceinSingaporeareinvestigating
Howmanypeoplediedinlastmonth’sriot?[br][originaltext]AnEthiopian
Whydidmoviesdobetterthantheater?[br][originaltext]Uptoabout1915
Whydidmoviesdobetterthantheater?[br][originaltext]Uptoabout1915
Whydidmoviesdobetterthantheater?[originaltext]Uptoabout1915,movi
Whatisthepurposeofthisconversation?[br][originaltext]W:Dr.Williams,I
WhatwasSulatimanHashim?[br][originaltext]PoliceinSingaporeareinvest
随机试题
Whoisillinhospital?[br][originaltext]M:Excuseme,canIspeaktoMary?F
Thedevelopmentoftoothpastebeganaslongagoas3000/5000BCintheancien
BillionsofyearsbeforetheSunwasborn,theMilkyWaygalaxyflickedout
SpeechActTheorywasfirstproposedby______.A、JohnSearleB、NormChomskyC、De
Unlikemostsports,whichevolvedovertimefromstreetgames,basketballwa
李某于2009年4月14日成为某公司某厂员工,并经过入厂三级安全教育,考核合格。
A.全当归B.当归尾C.酒当归D.土炒当归E.当归炭长于活血补血调经的是()。
设a,b为非零向量,且满足(a+3b)⊥(7a-5b),(a-4b)⊥(7a-2
假定某人将1万元用于投资某项目。该项目的预期收益率为12%,若每季度末到现金回报
下列关于人力资本投资的陈述,错误的是()。A.人力资本投资的重点在于它的
最新回复
(
0
)