过去，针对零售商的店内技术包括传统的前端销售点（即收银机）、关联的收据打印机、扫描仪和显示器。
In the past, the in-store technology focus for retailers included the traditional front-end point of sale (that is, cash register), associated receipt printers, scanners, and displays.
系统标记这盘录像带为已在某段时间被出租并且打印这笔交易的收据。
The system marks the videos as rented for the default period and prints a receipt for the transaction.
对于OCR，开发人员会尝试机器阅读一个打印收据上的文本。
For OCR, the developer is trying to machine-read the text in a printed receipt.
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