ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character like 'c' or '#' or an action of some sort. Here are some sample ASCII codes and the characters they represent:
033 -- !
034 -- "
035 -- #
036 -- $
So for example the code '035' will give you the character: #
Knowing ASCII codes allows you to insert a character that is not found on your keyboard.
Examples would include: ™ ¾ ®
How to insert ASCII codes:
Place your mouse cursor where you want to insert the special ASCII character in your document:
The character will appear on your screen at that location. Knowing ASCII codes is not only useful in web design, these codes will work in just about any program including software like MS Word and Excel and even simple programs like notepad.
If you happen to have a copy of MS Word, you can get to a list of ASCII character easily by selecting: Insert -> symbol. You have all your ASCII characters there but be careful, you will also find a bunch of characters that work in Word but not in your web pages.
Dreamweaver MX also has a 'Character' tab at the top of the window with many of these codes for you you to use.
Next : HTML code list