Display Data Channel (DDC) is a collection of protocols for digital communication between a computer display and a graphics adapter that enable the display to communicate its supported display modes to the adapter and that enable the computer host to adjust monitor parameters, such as brightness and contrast.

DDC (Direct Digital Control)直接数字控制，通常称为DDC控制器。 DDC系统的组成通常包括中央控制设备 (集中控制电脑、彩色监视器、键盘等)、现场DDC控制器、通讯网络、执行器、调节阀等元器件。 PLC 可编程逻辑控制器（Programmable Logic Controller），它采用一类可编程的存储器，用于其内部存储程序，执行逻辑运算、顺序控制、定时、计数与算术操作等面向用户的指令，并通过数字或模拟式输入/输出控制各种类型的机械或生产过程。 DCS 是 分布式控制系统 的英 …

DDC is a market leader in high-reliability data bus networking solutions, including sub-systems, boards, components, and software for the defense, civil aerospace, and space markets. DDC provides data bus solutions for MIL-STD-1553/1760, ARINC 429/717, Fibre Channel, Ethernet, CANbus, Serial I/O, and other protocols.

2024年1月1日 · 主机的显卡和显示器之间, 通过 i2c 总线通信 (dp, hdmi, dvi, vga 都有). 在这个过程中, 主机不仅可以获取显示器的信息 (分辨率, 刷新率, 显示器名称等), 也可以向显示器发送命令, 这就是 ddc/ci.

DDC structure: See-Manual notes (2) See-Manual notes—example 371.262 vs. 371.264 Standardized tests vs. Academic prognosis and placement Use 371.262 for works that focus on particular tests and their use. Use 371.264 for general discussions of the use of results of standardized tests in prognosis and placement.

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The DDC is the most widely used classification system in the world. It is built on sound principles that make it ideal as a general knowledge organization tool: meaningful notation in universally recognized Arabic numerals, well-defined categories, well-developed hierarchies, and a rich network of relationships among topics.

The DeweyBrowser was a prototype system for searching and browsing millions of WorldCat® records classified by the Dewey Decimal Classification® (DDC®) system. The interface was available in English, French, German, and Spanish, and users could navigate the DDC Summaries in several languages (See DDC Summaries ).

The Dewey Decimal Classification (DDC) system was developed in 1876 as a means to organize all knowledge. The DDC uses notation in Arabic numerals, well-defined categories, well-developed hierarchies, and a rich network of relationships among topics. The ten basic classes are organized by disciplines or fields of study.

The Dewey Decimal Classification (DDC) (Dewey pronounced: /do-e/), colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject.