1. The development of the concept of literature has gone through three stages: it was first seen in The Analects of Confucius, which was interpreted by Zhu in Song Dynasty as: literature refers to ancient books and sages who are familiar with historical facts. Modern times are generally understood as articles and books with historical value or important books and materials related to a certain subject. Modern scholars believe that literature is the carrier to record human knowledge and information. It consists of four elements: document content, carrier material, information symbol and recording method.
2. Computer literature retrieval: a literature retrieval method based on computer technology through modern retrieval means such as CD-ROM and online retrieval. Computer information retrieval, like manual retrieval, should be regarded as a basic skill of future scientific and technological personnel, and the training and cultivation of this ability is extremely important for scientific and technological personnel to adapt to the future society and cross-century scientific research. A researcher who is good at obtaining documents from electronic information systems must have more chances of success than those who do not have this ability. American journals reporting new lifestyles also regard interactive web retrieval experts as one of the top ten hot jobs in the future. These situations show that computer document retrieval is becoming more and more important, so it is worth paying attention to this technology.