1. The XML Web service at the core of . NET uses common technologies SOAP and XML to promote inter-enterprise computer collaboration.
2. SOAP is a specification for calling instructions, and XML is a specification for defining data formats.
3. MS-DOS operating system (command interface) became popular in the mid-1980s, and evolved into Windows (graphical interface) in the 1990s.
4. Programming methods are generally divided into two categories: component-oriented programming and object-
oriented programming. Component-oriented programming: Complete the program by assembling components (parts () of the program) together.
Object-oriented programming: Model the business truthfully first, and then Move the model into the program.
5. A computer is a machine that performs input, operation, and output.
6. A program is a collection of instructions and data.
7. To a computer, everything is a number.