打印机作为微型计算机的一个外围设备应用十分普遍,它是一种新型的代笔工具。目前世界上生产打印机的厂家很多,产品也各不相同。在点阵式打印机中,各种型号打印机的功能相似之处很多,但也各有不同,以适应不同的需要。本文仅对M2024点阵式打印机,以及它限IBM-PC主机相联时的有关问题作一介绍。一、字符编码表ASCII码为美国信息交换标准代码,它是目前最通用的一种标准代码。ASCII码表共包括256个字符(0～255),其中0～126位置中,均被ASCII码所占用,127位为空位。此外,在128～255区间内,还有少量 Printer as a microcomputer peripheral applications is very common, it is a new type of ghostwriting tool. At present, there are many manufacturers producing printers in the world, and the products are also different. In dot-matrix printers, various models of printers have many similarities in functionality, but they also have different features to suit different needs. This article only on the M2024 dot matrix printer, as well as its limited to IBM-PC host associated problems when making an introduction. First, the character encoding table ASCII code for the United States information exchange standard code, it is currently the most common kind of standard code. ASCII code table includes a total of 256 characters (0 ~ 255), of which 0 to 126 positions, are occupied by ASCII code, 127 bits are empty. In addition, 128 ~ 255 range, there are a small amount