For example, almost all legacy computer systems need some form of design investigation, if for no other reason than to train new developers in the maintenance and extension of the system.

例如，如果是仅仅出于就系统的维护和扩展培训新开发人员，则几乎所有的遗留计算机系统都需要某种形式的设计研究。

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Analysis the function, composition and structure of registry, and study it about computer system maintenance, performance and security.

分析了注册表的作用、组成与结构，并就注册表对计算机系统的维护、性能和安全作了一定的探讨。

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Network management centralized maintenance and management system adopts the latest fruit of modern computer and data telecom technology, it can realize the overall network computer management.

网管系统集中维护和管理系统采用当今计算机和数据通讯技术的最新成果，实现全网计算机管理。

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