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电子计算机除进行科学计算外,还大量用于非数值计算领域.企业管理、银行业务、档案处理、客运统筹、库存管理、罪犯资料和排版印刷等都广泛地应用着计算机.在这些领域,计算机和语言文字的关系非常密切.人们通过键盘把自己的意图和有关信息资料打到显示终端CRT的显示屏上,向计算机发出命令或提出要求,随后计算机把执行的结果送回CRT向操作者汇报,或征求操作者对下一步工作的指导.这样“人”和“计算机”就通过键盘和CRT进行“对话”了.“键盘”
In addition to scientific computing, electronic computers are also extensively used in the field of non-numerical computing, and computers are widely used in business administration, banking, file handling, passenger co-ordination, inventory management, criminal data and typography, etc. In these areas, computers And the language is very close.People through the keyboard to their own intentions and related information to hit the CRT display terminal information to the computer command or request, then the computer to the implementation of the results back to the CRT report to the operator , Or ask the operator for guidance on what to do next so that “people” and “computers” talk to the CRT through the keyboard. “Keyboard”