In 10.6 Snow Leopard you can go into the System Preferences and select Keyboard and in the keyboard option check the box next to Show Keyboard & Character Viewer in menu bar. Then go into the upper menu at the top of the screen and it should have the different options and keystrokes for the different characters you need.
Check
It should be in the symbol list on your computer.
√ is the close but that is alt 251
just copy and paste this to your computer.
She left a small mark on the wall when she bumped into it.
open up the computer, should be a label on the insert
you need a french keyboard i think
Yes
Always check the plug to make sure it is plugged in. The second thing is check the power strip make sure that is receiving power. Third thing is check the power button located on the back of the computer make sure it is on.
Make sure your sound card is properly connected inside your computer to the motherboard. Make sure the driver is working properly. check your sound card and your wiring.
quality and the same mark as your tv
I think the backslash is right underneath the question mark on any computer.