Hold The Alt Key Down and Enter The Numbers

Á = Alt + 0193 ........................á = Alt + 0225

É = Alt + 0201.........................é = Alt + 0233

Í = Alt + 0205..........................í = Alt + 0237

Ó = Alt + 0211........................ó = Alt + 0243

Ú = Alt + 0218........................ú = Alt + 0250

Ñ = Alt + 0209........................ñ = Alt + 0241

Ü = Alt + 0220........................ü = Alt + 0252

¿ = Alt + 0191.........................¡ = Alt + 0161

« =Alt + 0171........................» = Alt + 0187

€ = Alt + 0128

¼ = Alt + 172

½ = Alt + 171

º = Alt + 167

Macintosh Platform You can use the standard Macintosh fonts to type the necessary characters in Spanish. Press the key combination option-e (press and hold the option key, and then press the "e" key). Release both and press the vowel that you want accented
Option-e+a = á
Option-e+e = é
Option-e+i = í
Option-e+o = ó
Option-e+u = ú

Other special characters:
Option-n+n = ñ
Option-u+u = ü
Option-1 produces an inverted exclamation point.
Shift-Option-? produces an inverted question mark.