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
2024-05-14
59
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://tihaiku.com/zcyy/3597893.html
相关试题推荐
[originaltext]Theclassiccaseinmedicalhistoryofatyphoidcarrierist
[originaltext]Theclassiccaseinmedicalhistoryofatyphoidcarrierist
[originaltext]M:Mathdepartment,ProfessorWebsterspeaking.W:Hello,Prof.W
[originaltext]M:Mathdepartment,ProfessorWebsterspeaking.W:Hello,Prof.W
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]HowdoAmericanhusbandsfeelabouthavingworkingwives?Ma
随机试题
Canadaoccupiesabout______ofNorthAmerican.A、1/3B、1/2C、1/4D、1/5B本题考查加拿大
区域火灾风险评估时,选用重大危险因素、人为因素、区域公共消防基础设施、灭火救援能
关于原发性肺结核病,下列哪一项是正确的()A.仅发生于儿童 B.常见的死亡
输精管道不包括( )A、附睾 B、精囊腺 C、输精管 D、射精管
新斯的明的禁忌证是()。A.青光眼 B.重症肌无力 C.阵发性室上性心
常用于表面麻醉的是A.丁卡因 B.利多卡因 C.普鲁卡因 D.可待因 E
根据相关法律的规定,当事人可以解除合同的情形有()。A、因不可抗力致使合同目的不
劳神过度,临床多见症状是( ) A.气少力衰,神疲消瘦 B.腰酸腿较,精神
A.【用法用量】 B.【药物相互作用】 C.【药物过量】 D.【禁忌】根据
根据《水利工程合同监督检查办法(试行)》,合同问题包括()。A.一般合同问
最新回复
(
0
)