The General settings configure your basic site preferences such as the
Site Title and Tag Line, the WordPress Address and Site Address, the
administrators email address and the date and time format, among other things.
The WordPress
Address (URL) is the location of your main WordPress core files. The Site Address (URL) is the address you
want to use for your site homepage. Usually these two URL’s are the same but
they can be different if, for example, you have your WordPress files stored in
a subdirectory.
When you install WordPress,
you get the option to select the language that you’d like to use within the
Dashboard. After installation, if you’d like to change the language, you can
select this using the Site Language dropdown at the bottom of the page.