ISO (International Standards Organization) entities, sometimes referred to as character entities, are a group of ASCII characters that can be used in HTML to display special characters. For example, you can’t simply type the registered trademark symbol ® from your keyboard since it’s not a standard ASCII character; it’ll show up as garbage on your web page. But if you use the ISO entity equivalent, the web browser will be able to interpret the character correctly.
For example, the umlaut ¨ appears if you write
in your HTML code.
Short for network address translation, a NAT server acts as a transition point between your local LAN and the internet at large.
The NAT server converts all of the IP addresses on your local LAN to one single IP address. When NAT is active, your LAN appears and acts as one entity when viewed from the internet. The NAT server continues to resolve individual local addresses when requests from the internet are received.
GIMP stands for GNU Image Manipulation Program, and is a free software program for image authoring and composition, and photo retouching. The program has a scripting interface and can be expanded with plug-ins and extensions.
Software developers need to know which platform their software will be running on. A platform can be an Intel processor running Windows, a Macintosh running System 8, or any combination of hardware and software that works together. Platforms are important for web designers to understand, because they need to make sure their pages will work on more than one platform. Different browsers display web pages differently on various platforms. Since the internet itself is a cross-platform system, designers need to test web pages on different combinations of machines and browsers to ensure the widest possible audience will be able to view their sites.
The red, green, and blue (RGB) color system can represent a large portion of the color spectrum by mixing these three primary colors. Since cathode ray tube devices, such as computer monitors, display color with red, green, and blue light, this is the color system of the Web. There are 216 RGB colors that appear without dithering (i.e., without varying the pattern of dots in an image) in browsers for the PC and Macintosh platforms.
(see Hexadecimal, Palette, CMYK)