Systems built on DEBA can be thought of as always moving towards equilibrium, with participants joining and leaving at will, based on application logic.

建立在DEBA之上的系统总是试图达到一种均衡，参与者可以随意的加入和离开，这些都是建立在应用程序逻辑的基础之上。

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Companies that were doing mainframe IT development in the 1960s are still running core systems based on that original logic.

年代做主机IT开发的公司仍旧在原始的逻辑上运行核心系统。

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IT services: These typically contain no intrinsic business logic, but are used to provide service-based access to existing operational systems.

IT服务：这些服务通常不包括实质的业务逻辑，而用于提供对现有运营系统的基于服务的访问。

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The lot also includes some handouts that cover Ferractor-based systems, which Univac used in their logic circuits as a magnetic alternative to the vacuum tubes used in earlier computer designs.

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