Typing Umlauts on a PC and Mac

On a PC (Windows):

The fail-safe method using the ALT-key:

• Number Lock should be ON
• Use the left-side ALT key (for most keyboards; try the right if it doesn’t work)
• Hold down the ALT key and type a number on the number pad as follows (while holding the ALT key down). When you release the ALT key, you will have the following character:

ALT 0223  =  ß
ALT 0228  =  ä
ALT 0246  =  ö
ALT 0252  =  ü
ALT 0196  =  Ä
ALT 0214  =  Ö
ALT 0220  =  Ü

There are other ways to type these characters, depending on your system settings and what word processor you’re using, but the above should work in all environments, even DOS if needed. But if you prefer some of the ‘easier’ methods, please do a web search or see this page, which is the best summary I’ve seen:

On a Mac:

Use the OPTION key. Hold down OPTION and push ‘s’ to get ß. For the umlauted characters, hold down OPTION and push ‘u’. Release OPTION, then type the desired base letter (a, o, u, A, O, or U). The umlaut will appear over the letter you typed. (So to type ü, you should hold down OPTION, press u, then release OPTION and press u again.)

On Linux:

I don’t know! You’ll need to do a search online, sorry.