Photoelectric reader

The main function of photoelectric reader is reading the answer sheets of objective questions and acquiring the information of students ' answer sheets .

光标阅读机的主要功能是阅读客观题答题卡并采集考生的答题卡信息。

Research on the connection of a photoelectric tape reader with ibm & PC Microcomputer

光电读入机与IBM-PC微型计算机连接的研究

We describe in some detail a concrete connection scheme and the programming flow process of a photoelectric tape reader with an IBM - PC microcomputer . We also introduce a block diagram of the system with the aim to make the cost minimum .

本文详细阐述了光电读入机与IBM&PC微型计算机的具体连接方式和程控流程，并以最少投资的目的介绍了系统组成框图。