Google muvera -shreya ———> information retrieval [IR] in computing and information science is the task of identify need the information system resources that are relevant to an information need the information need the information need can be specified in the form of a search query in the case of document retrieval query can be based indexing information retrieval queries can be based on full text or other content based indexting information retrieval is the science of searching for information in a documents searching for document themselves and also searching for the metadata that describes data for database of texts images and sounds automatic information retrieved system are used to reduce what was been called information overload an IR system is a system is a software system that provides access to books journals and other documents it also stores and manage these documents web search engine are the most visible IR applications