The Apple Logo in Unicode
Please avoid using it on the web
Some people have noticed, and begun using, the unicode values for the Apple Logo.
This is probably fine for Mac-only applications. But it is NOT appropriate, and even WRONG, and it will NOT work properly as a general web page character. The problem is that the unicode value used is one of several that is set aside for private use. That means that each operating system, or application, or implementation is free to use those unicode characters for anything they want. It just so happens that Apple has chosen to use unicode character U+F8FF (decimal value 63743, or on the web as either  or ) as the Apple Logo. But some Windows fonts put in a Windows logo. And some other fonts put in a Klingon Mummification glyph. Or elven script. Or anything they want. And if it isn't defined in your local font, you'll just see a square. So who knows what you might see when I put the character in right here:
Yes, on a Mac, you probably see an actual Apple Logo. But on other systems, you probably see other things. So what is it good for? You can use it on Mac-only programs, and it'll probably work fine (especially if the application explicitly sets the font to one where you know this character is defined as the Apple Logo). You can even use it on Mac-only web pages if you are absolutely sure that you don't care if it is wrong on non-Mac browsers.
But you can not claim surprise when people say they see a Windows Logo on your Apple web-page.
Slightly More Useful Mac characters
Unicode does define some other characters which are sort of Mac-specific.
⌘ - ⌘ - ⌘ - the Command Key symbol
⌥ - ⌥ - ⌥ - the Option Key symbol
⇧ - ⇧ - ⇧ - the Shift Key (really just an outline up-arrow, not Mac-specific)
⎋ - ⎋ - ⎋ - the Escape Key (also not Mac-specific; described as "BROKEN CIRCLE WITH NORTHWEST ARROW", or an escape character from ISO 9995-7). I originally thought this was supposed to be a symbol for the power button.And while we're at it, some related (not mac-specific):
⇥ - ⇥ - ⇥ - the Tab Key symbol
⏎ - ⏎ - ⏎ - the Return Key symbol
⌫ - ⌫ - ⌫ - the 딜리트(영문으로 적으니 오류가 나네요 ㅡㅡ;) Key symbol
⌽ - ⌽ - ⌽ - a possible substitute for the Power symbolEven though these are defined in standard Unicode, there is no guarantee that they will exist in the font of the receiving browser, but they're at least globally defined, so they're fair game.