台式电子计算机,其输出方式分为两大类:一为显示方式。包括氖气放电数字管、萤光数字管、多极氖气放电数字管(笔划式)、光发射二极管(发光二极管)、液晶显示管、阴极射线管及场效应发光体显示等多种。这类输出方式,结构简单,成本较低,但数据不能保存。另一类为印刷输出方式。也有字轮打印、齿条打印、针矩阵、火花放电、墨水喷印、静电感应及感热印字等多种,尤以字轮打印为最普遍。印刷输出方式较之显示方式,其突出的优点是:运算过程和全部数据均能记录在纸上,不仅清晰,而且便于保存。遇有操作差错,可以随时查对,及时更正。有些打印机并具制表功能。这些优点,为需要保存记录的科研、财贸统计、交通运输等部门和某些 Desktop computers, the output is divided into two categories: one for the display. Including neon digital tube, fluorescent digital tube, multi-polar neon discharge digital tube (stroke type), light emitting diode (LED), liquid crystal display tube, cathode ray tube and field effect light emitter display and so on. Such output, simple structure, lower cost, but the data can not be saved. Another type of print output. There are word wheel printing, rack printing, pin matrix, spark discharge, ink jet printing, electrostatic induction and thermal printing, and so on, especially in the word wheel printing is the most common. Compared with the print output mode, its outstanding advantages are: computing process and all the data can be recorded on paper, not only clear, but also easy to save. In case of operational errors, you can always check and correct in time. Some printers have a watch function. These advantages, for the need to keep records of scientific research, finance and trade statistics, transportation and other departments and some