How a Computer Reads a Program

In summary, you should keep the following points in mind when you write your programs:

• A computer does only what you tell it to do.
• A computer program consists of data and code.
• There are three kinds of statements: assignment, control, and operation.
• The computer is the subject of every command in a program.
• It reads your program looking for coherent statements made up of reserved words and arguments.
• It then does what you tell it to do with the data.