What are the sources of information?

Information sources include oral information sources, physical information sources, literature information sources and electronic information sources. Different types of information sources have different characteristics and applicable occasions. The specific performance is as follows:

1. Oral information sources are information resources obtained through oral languages such as conversation, chat, teaching and discussion.

2. Physical information sources refer to information resources in the form of cultural relics, product samples, models and sculptures.

3. Literature information sources are knowledge and information resources recorded on various carriers in various ways such as words, graphics and symbols. Including books, periodicals, newspapers, dissertations, patents, standards, conferences, government publications and other special documents;

4. Electronic information sources mainly refer to information sources that use electronic technology to realize information storage and dissemination, including radio, television, optical disks, magnetic disks, tapes and network information sources. Among them, obtaining the required information through the network has become the most important way to obtain information today.