This paper presents a real-time and multi-task processing system developed on IBM PC-DOS (or MS-DOS) which is a single user and single-task operating system.

本文介绍了在IBM PC的单用户单任务磁盘操作系统IBM PC—DOS或MS-DOS基础上实现的一种适用于各种监控系统的实时多任务系统。

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The operating system is responsible for deciding which task should be using the processor at a given time and for controlling access to Shared resources.

一个操作系统负责决定哪一个任务在给定的时间将使用处理器，并且控制对共享资源的访问。

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Machines are classified by task, location, connectivity, users, operating system type and version, and so on.

机器按任务、位置、连通性、用户、操作系统类型和版本等分类。

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Probably, but Semmelhack points out that the second slot (covered behind a flap) is dedicated to loading the operating system, making it a trivial task to quickly switch between kernels or get unbricked.

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