操作系统包括处理机管理、存储器管理、设备管理、文件管理和作业管理五大类管理功能。
The operating system including processor management, memory management, equipment management, file management and operation management five kinds of management functions.
文字处理机：用电脑逻辑接收，贮存和提取文件，跟着作编辑和以打字款式输出的机器。
Word processor: Machine using computer logic to accept, store and retrieve documents for subsequent editing and output in typewriter style.
文字处理机：用电脑逻辑接收，贮存和提取文件，跟着作编辑和以打字款式输出的机器。
Word processor: Machine using computer logic to accept, store and retrieve documents for subsequent editing and output in typewriter style.
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