首页
登录
职称英语
[originaltext] What are the zebra stripes on the tomato soup cans and potato
[originaltext] What are the zebra stripes on the tomato soup cans and potato
游客
2023-09-03
318
管理
问题
What are the 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.
This 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. By using UPC, the computer can print out the accurate price of the item. 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 the 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 machine-readable numbers can be used with this system. In the example, the 0’on the left side means that it is a grocery item. The numbers 51000 indicate the manufacturer. In this case it is the Campbell Soup Company. The last five digits, 00011, mean it is a can of tomato soup. The light rays from the light beam read these lines, and the message is sent directly to the computer. The computer then finds the information about this product (price, inventory data) and sends it instantly back to the terminal at the checkout counter. At the same time, it keeps an inventory for the store manager. Many products have labels with these stripes.
选项
A、By the checkout clerk.
B、By the customers themselves.
C、By a laser beam of light.
D、By the cash register.
答案
C
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/2981627.html
相关试题推荐
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Today,ChineseAmericansmakeuplessthan1%oftheU.S.pop
[originaltext]W:Sinceit’stherushhour,let’stakethesubway.M:OK.It’sn
[originaltext]W:Haveyoumanagedtoassemblethemachineyet?M:I’vebeenstu
随机试题
[originaltext]Whenpeopleencountersomeonewithastrongpersonality,they
Thedealisdone:untilafewyearsagoarelativelyknown【S1】______Chin
移动电气设备时,必须经()切断电源并做出妥善处理后进行。A.维修工 B.施工用
我国法律渊源主要由各种成文法构成,即由()等各种规范性法律文件所构成。A.宪法
肺结核最主要的传播途径是A.呼吸道传播 B.消化道传播 C.皮肤黏膜传播
共用题干 第二篇SleepLetsBrainFileMemoriesT
子宫肌瘤的特征不正确的是A:多发性肌瘤多见 B:易发生月经过多 C:可表现为
父亲将两瓶一样重的饮料分给6岁的小明和8岁的小光两兄弟,开始时两个孩子都知道两瓶
发展自助小组的技巧包括()。A.联结 B.鼓励 C.关怀式学习 D.同辈榜
新建铁路工程地质勘察的“加深地质工作”是在下列哪个阶段进行的? (A)踏勘和初
最新回复
(
0
)