The objective of this paper is to define Business Intelligence and to identify the information and communication technologies that support to this type of information system. A context is made about the concept and typologies of information systems (IS). Data Warehouse. Data Mart and Data Mining are the technological resources of Back-end system. https://www.roneverhart.com/Burl-Audio-B2-Bomber-ADC-2-channel-AD-Converter-p17722/