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
2024-10-25
1
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/3816482.html
相关试题推荐
Theproject’smaincontractorwasfrom______.[originaltext]Officialsfrom
ItcanbeinferredthatScottwasaherobecause______.[br][originaltext]
ItcanbeinferredthatScottwasaherobecause______.[br][originaltext]
ItcanbeinferredthatScottwasaherobecause______.[originaltext]Many
Whatisthemaintopicoftheconversation?[br][originaltext]W:Today’sarts
Whatisthemaintopicoftheconversation?[br][originaltext]M:You’reprobab
Whatisthemaintopicoftheconversation?[originaltext]M:You’reprobablywon
Whoisthecaller?[br][originaltext]W:GeneralGas,canIhelpyou?M:Mr.Ch
Whoisthecaller?[br][originaltext]W:GeneralGas,canIhelpyou?M:Mr.Ch
Whoisthecaller?[br][originaltext]W:GeneralGas,canIhelpyou?M:Mr.Ch
随机试题
Ihavewaitedforthirtyminutes;thatseemed______hourstome.A、manyB、verym
Agoodmodernnewspaperisanextraordinarypieceofreading.Itisremarkabl
Todaymanypeoplewholiveinlarge【S1】______areassuchasParisandNewYor
在观看世界杯的比赛中,小明记住他从球场情境中了解的足球阵法,根据班杜拉的保持过程
下列关于欺诈发行股票、债券罪客观要件的说法中,错误的是()。A.行为人必须在招
参与集中的一个经营者拥有其他每个经营者()以上有表决权的股份或者资产的,可以不向
案例一: 一般资料:求助者,女性,32岁,博士,某公司职员。 案例介绍:求助
下列关于牙齿萌出的描述,正确的是A:在一定时间内,按一定顺序先后萌出 B:同颌
游离皮片移植的皮片越厚则A.越容易成活 B.收缩越大 C.质地越脆 D.越
关于会计主体与法人单位的说法正确的是()。A.法人单位必然不是会计主体 B.
最新回复
(
0
)