Introduces new terms with which you may not be familiar, and is used occasionally for emphasis. Emphasizes important information. Also indicates button, menu, and icon names on which you can act. For example, click Next. Indicates keys or key combinations that you can use. For example, press the ENTER key. monospaced italics Separates menus and their associated commands. For example, Select File / Copy means that you should select Copy from the File menu. Indicates optional items. For example, in the following statement: SELECT [DISTINCT], DISTINCT is an optional keyword. Indicates that you must select one item. For example, {yes | no} means that you must specify either yes or no. Indicates that the immediately preceding item can be repeated any number of times in succession. An ellipsis following a closing bracket indicates that all information in that unit can be repeated.The drivers are supported in the Windows, UNIX, and Linux environments. When the information provided is not applicable to all supported environments, the following symbols are used to identify that information: