2. There are four first-level disciplines in the information field, namely: 0809 electronic science and technology, 08 10 information and communication engineering, 081control science and engineering, and 08 12 computer science and technology. These four first-level disciplines, with wide coverage, profound accumulation, rapid development and high popularity, are the core disciplines in the information field and are also national key universities. In particular, 985 universities such as C9 universities are the key development targets, and the competition is extremely fierce.