HOW TO MAKE SYMBOLS WITH KEYBOARD
 
Alt + 0153..... ™... trademark symbol
 Alt + 0169.... ©.... copyright symbol
 Alt + 0174..... ®....registered  trademark symbol
 Alt + 0176 ...°......degree symbol
 Alt + 0177 ...±....plus-or -minus sign
 Alt + 0182 ...¶.....paragraph mark
 Alt + 0190 ...¾....fraction, three-fourths
 Alt + 0215 ....×.....multiplication sign
 Alt + 0162...¢....the  cent sign
 Alt + 0161.....¡..... .upside down exclamation point
 Alt + 0191.....¿..... upside down question mark
 Alt + 1.......☺....smiley face
 Alt + 2 ......☻.....black smiley face
 Alt + 15.....☼.....sun
 Alt + 12......♀.....female sign
 Alt + 11.....♂......male sign
 Alt + 6.......♠.....spade
 Alt + 5.......♣...... Club
 Alt + 3.......♥...... Heart
 Alt + 4.......♦...... Diamond
 Alt + 13......♪.....eighth note
 Alt + 14......♫...... beamed eighth note
 Alt + 8721.... ∑.... N-ary summation (auto sum)
 Alt + 251.....√.....square root check mark
 Alt + 8236.....∞..... infinity
 Alt + 24.......↑..... up arrow
 Alt + 25......↓...... down arrow
 Alt + 26.....→.....rght arrow
 Alt + 27......←.....left arrow
 Alt + 18.....↕......up/down arrow
 Alt + 29......↔...left right arrow
Saw this on facebook, I did not know this, and am wondering does this only work on Windows OS, or would it be unversal. Also curious, as to other keyboard tricks and tips any body knows of. 
It does not matter what OS they are for, but identification of what OS your trick or tip is for would be a nice bonus. Thanks
Though this is posted in modern computing tips and tricks for vintage systems would be appreciated as well.
			
		










