首页
登录
职称英语
Codes are scanned by ______. [br] [originaltext] What are zebra stripes on
Codes are scanned by ______. [br] [originaltext] What are zebra stripes on
游客
2023-11-19
73
管理
问题
Codes are scanned by ______. [br]
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、Manufacturer.
B、Item.
C、Grocery store name.
D、Price.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3201922.html
相关试题推荐
WhatplaguearesomeAfricancountriesfacing?[br][originaltext]AUnited
WhatplaguearesomeAfricancountriesfacing?[br][originaltext]AUnited
WhatcanbeinferredaboutthedeathofthePalestinianteenager?[originaltext]
Whatshouldbeblamedforthecrash?[originaltext]Sudan’sforeignminister
ScientistsareinterestedinMarsbecause______.[originaltext]Science-fi
ThecauseofmostofthedivorcecasesintheU.S.is______.[originaltext]
Whydoesthemanobjecttotheideaofgoingforawalk?[originaltext]W:Hi,Mi
What’sthewoman’sjobabout?[br][originaltext]M:This,inshort,iswhatI’v
What’sthewoman’sjobabout?[br][originaltext]M:This,inshort,iswhatI’v
What’sthewoman’sjobabout?[originaltext]M:This,inshort,iswhatI’vedone
随机试题
TASKTWOCOMPLAINTForquestions18—22,matchtheextractswiththecomplaint,l
Instantlythevastassemblage,aswithone______,struckupthenationalhymno
Thegeneticcharacteristicsofalllifeformsonearthareembodiedinthec
Sadstoriesarenotverynicetoreadabout,butifwethinkandtalkabout
[originaltext]M:Howshouldwecelebratetheanniversaryofthefoundingofour
一、二级加油站应配置灭火毯5块、砂子()m3。A.2 B.3 C.4
本文的发文字号书写错误,正确的写法应该是()。 A.×发[2013]第23号
下列药物属于β-内酰胺酶抑制药的是A:氨苄西林 B:克拉维酸 C:盐酸米诺环
假定美元和德国马克的即期汇率为USD/DEM=1.6917/22,1个月的远期差
下列关于钢管焊接无损探伤检测的要求说法正确的有( )。A.应由有资质的检测单位完
最新回复
(
0
)