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
2024-10-25
1
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/3816484.html
相关试题推荐
Codesarescannedby______.[br][originaltext]Whatarezebrastripeson
Codesarescannedby______.[br][originaltext]Whatarezebrastripeson
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
ComeSeptember,thecampusesofAmericawillbeswarmingnotjustwithretu
《流动性覆盖率披露标准》规定,流动性覆盖率披露的各项数据应是前一季度每月观测值。
肾炎性肾病不同于单纯性肾病的是A.水肿明显 B.大量蛋白尿 C.血尿、高血压
双氯芬酸钠的化学结构式为A. B. C. D. E.
治疗慢性粒细胞白血病慢性期的首选药物为A.羟基脲 B.白消安 C.二溴甘露醇
由铁磁材料构成的磁通集中通过的路径称为()。 (A)电路;(B)磁链;(C
下面四个图形中,只有一个是由上面的四个图形拼合(只能通过上、下、左、右平移)而成
排列图上不同矩形髙度基本一致,由此得到的结论是()。 A.已经找到比较理想的
烽源有限公司的章程规定,金额超过10万元的合同由董事会批准。蔡某是烽源公司的总经
扬程是指单位重量的水从泵进口到泵出口所增加的能量,有设计扬程、工作扬程、净扬程。
最新回复
(
0
)