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Digital Literacy : A counterpart of conventional literacy applied to digital literacy is making navigation in information flows easy and accessible. This action makes the digital divide smaller.                                          
Big Data : Large, varied and agile collection of data used in many fields. As its name indicates (big data) the enormous importance of treatments and their perspectives is exploited for political, health, crime etc ... analyses.                                         
Cleantech : These are industrial techniques and services using natural resources - water, energy, raw materials - to improve efficiency and productivity. This method allows a systematic reduction in the volume and toxicity of waste while guaranteeing the same or even better performance than existing technologies.                                    
CLOUD Computing : Use of the computing and storage potential of remote computer servers using a network, mainly the Internet.                                   
Data Center : Physical site for data centralization. Groups together computer installations (routers, hard disks, servers, etc.), stores and distributes data via Internet access or an (internal) intranet network.                                          
Ecosystem : Basic ecological unit of the environment (biotope) and the organisms living in it (biocenosis). For example, marine environments, deserts, mountains, forests are ecosystems.                              
Rebound effect : This is the difference between the positive side of energy efficiency such as building insulation, improved heating systems, and more fuel-efficient vehicles, and the negative side of increased use such as higher temperatures in homes and longer travel distances. The beneficial effect of efforts in terms of ecological economy is therefore cancelled out by an increase in consumer habits and customs.                                           
Grey energy : Also called embodied energy, is the amount of energy used throughout the life cycle of a material or equipment. The stages are: production, extraction, transformation, manufacturing, transport, implementation, maintenance and recycling. This is masked, non-direct energy (as opposed to easily traceable use). Grey energy is human, animal, electrical, thermal, etc... The sum of these factors can determine the need for a product throughout its life cycle. The knowledge of these calculations will guide the consumer towards a reduction of the environmental impact thus generated.                                        
Digital divide : A digital divide corresponds to the differences in access between people who have the possibility of accessing digital (via devices or connection options) and those who do not.                                        
Green Tech : The Green Tech community, initiated by the Ministry, is a new approach by the collective to better achieve sustainable development objectives. The merging of digital and green transition has created a community of values, supported by smart grids and data sharing. A new development model, accelerator of technological innovation and promoter of wealth and employment is emerging thanks to GreenTech verte. A new kind of digital and ecological thinking in a nutshell.                                    
Hacker : In French hacker, computer expert in researching techniques to divert the protections of software and hardware. His motivations may be curiosity, the search for recognition or glory, his political awareness or even remuneration.                                    
Digital Humanities : Still called digital humanities, is a set of research and pedagogy in computer science, art, literature, humanities and social sciences. Its methods are based on the use of digital tools, online and offline, while integrating new digital uses as well as more classical subjects of study.                               
Illectronism : It is the embarrassment, or even the inability, encountered by a person to use computer machines and tools because of their lack of knowledge of how they work. It is the extension of illiteracy transposed into the digital world.                                  
Literacy : This is the ability to apprehend and use computer equipment and written information on a daily basis, in one's private, professional or associative environment, etc... to better understand and use the information.