1, the main characteristics of the computer include: high speed: the computer can process and calculate data at a very high speed; Large storage capacity: the computer can store a large amount of data; High accuracy: high accuracy of computer operation, which can avoid human error; Strong programmability: the computer can program and change functions according to different needs; High degree of automation: the computer can automatically perform the specified tasks.
2. Computers are mainly used in the following fields: business and finance: financial management, stock trading, market analysis, etc. Science and engineering field: used for scientific calculation, data analysis, image processing, etc. Education: used for teaching, learning, research, etc. Medical care field: used in medical image processing, medical record management, drug research and development, etc. Entertainment and games: used in film production, game development, virtual reality, etc.
Computer classification:
1, classified by performance index: supercomputer, high speed, large capacity; Mainframe, fast, used in the field of military technology research; Minicomputer, simple structure, low cost and outstanding cost performance; Microcomputer is small in size, light in weight and low in price.
2. Classification by purpose: special machine with strong pertinence, specific service and special design; Universal computer, scientific calculation, data processing and process control to solve various problems.
3, according to the principle of classification: CNC machine tools, high speed, high precision, automation, versatility; Simulator takes analog quantity as operation quantity, which is fast and poor in accuracy; Mixer combines the advantages of the first two and avoids its disadvantages, and is in the development stage.