Two meanings. 1. Dewey Decimal (DDC) is a classification method widely used in libraries around the world. 2. Direct digital control system (Direct Digital Control short), the computer collects real -time data through analog input channel (AI) and switch volume input channel (DI), then calculates in accordance with certain rules, and finally sends out the control signal. And through the simulation output channel (AO) and switching output channel (DO) directly control the production process . Dewey decimal classification method Classification method for libraries around the world. This classification system first had this category concept in 1873, and was officially published in 1876, named "AND SUBJECT Index for And Arranging The Books and Pamphlets of a Library in 1885. "Decimal and Related Index", the latest edition is the 22nd edition published in July 2003, referred to as DDC 22. At present, the maintenance of DDC is responsible for (DDC) (EPC), and the update maintenance and publishing of website information is OCLC. DDC is classified by traditional disciplines. A total of 10 main disciplines (Main Classes) include all the knowledge systems. Each category is subdivided by 10 categories, and then divided into 10 small small categories. Class (Sections). Each discipline in DDC is given a certain range of numbers to indicate that its ten major categories (Main Classes) are:
[Game Night Reading] Unreal (27) What is DDC? The introduction of project settings and file management this section has enriched the knowledge of the illusion engine!
n00:00 / 00: 2570% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
Two meanings.
1. Dewey Decimal (DDC) is a classification method widely used in libraries around the world.
2. Direct digital control system (Direct Digital Control short), the computer collects real -time data through analog input channel (AI) and switch volume input channel (DI), then calculates in accordance with certain rules, and finally sends out the control signal. And through the simulation output channel (AO) and switching output channel (DO) directly control the production process
. Dewey decimal classification method
Classification method for libraries around the world. This classification system first had this category concept in 1873, and was officially published in 1876, named "AND SUBJECT Index for And Arranging The Books and Pamphlets of a Library in 1885. "Decimal and Related Index", the latest edition is the 22nd edition published in July 2003, referred to as DDC 22. At present, the maintenance of DDC is responsible for (DDC) (EPC), and the update maintenance and publishing of website information is OCLC.
DDC is classified by traditional disciplines. A total of 10 main disciplines (Main Classes) include all the knowledge systems. Each category is subdivided by 10 categories, and then divided into 10 small small categories. Class (Sections). Each discipline in DDC is given a certain range of numbers to indicate that its ten major categories (Main Classes) are:
000 computers,
[Game Night Reading] Unreal (27) What is DDC? The introduction of project settings and file management this section has enriched the knowledge of the illusion engine!
n00:00 / 00: 2570% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description