Define and describe the following terms: client, server, browser, middleware, database, database management system, entity, relationship, entity-relationship modeling, and process modeling.
Go online using any browser and visit several different Web sites. Use the View command (or click the right mouse button and choose View Page Source). Describe what you see.
Go to an e-commerce site (you can stop before you spend any money). Make choices by clicking on links and filling out forms. Observe the Web address showing up in the address area of the toolbar. What are the filenames and what are the extensions? In some, not all cases, you will see the input data you have entered into forms as part of the address. More on this in later chapters.