1.5 Structural Elements

Take a look at FIGURE 1.4. It shows the HTML source code that was used to generate the Kansas City Weather web page shown earlier. What’s source code, you ask? With many programming languages, two types of code are associated with a single program. There’s source code, which the programmer enters, and there’s executable code, which is low-level code that the computer hardware understands and executes (runs). Executable code is generated from the source code with the help of something called a compiler. As you learn HTML, there’s no need to worry about executable code because it is generated automatically behind the scenes and you never see it. So, why did we bring it up? So you can mention executable code in conversation ...

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