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
61
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:http://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
人民币升值会增加人民币的购买力,扩大国内消费者对进口产品的需求,还可以减轻进口能源和原料的成本负担。TheappreciationofRMBwilln
GeorgeHerbertMeadsaidthathumansaretalkedintohumanity.Hemeantthat
[originaltext](29)"It’sAcademic"isaSaturdaymorningprogramforhigh
【S1】[br]【S8】O空格处需要填入一个动词作谓语,并且该动词要能与service构成动宾搭配。选项中的O.performs“执行,履行”符合要求,p
以下哪项属于健康行为中的保健行为A.预防接种 B.戒烟行为 C.合理营养和平
血小板P选择素含量增高,除外A.急性心肌梗死 B.脑血栓 C.自身免疫性疾病
A.醛固酮 B.去氧皮质酮 C.氢化可的松 D.地塞米松 E.氟氢可的松
属于变压器非电量保护装置有()。(A)压力释放阀(B)油流速动继电器(C
同业拆借市场的特点包括()。A.期限短 B.参与者广泛 C.在拆借市场交易的
(2019年真题)根据《安全生产法》,关于企业安全生产管理机构设置和安全生产管理
最新回复
(
0
)