Will restoring my iPhone erase my music on computer?

I'm about to restore my iPhone and I understand it'll erase everything on my phone, but after the restore, if I sync my iPhone to my computer to bring everything back, nothing on my computer is gonna be gone, right? I just want to clarify. It won't delete my iTunes music or information on my computer? Just all gone on my phone, safe on computer? I just want to double check.

Iphone 5 video record issues?

My iphone records little to no video sounds
but when i use the voice record app i hear sounds

what is the problem

Anyway to FAKE iPhone device?

Is there anyway I could fake my device so the app thinks I have an iPad 4 when I have an iPod 5. There's a game called Modern Combat 5 which lags on my iPod cause of the retina. And to fix it, I need to let the app think I have an iPad 4 which has an option in the game (app) to lower the graphics.

If you are good at this stuff, please help me.

How to bring my music while I jog?

Ok so I've stopped jogging after being in the hospital for some time, but now I start again and I wanna bring music.

The thing is my workout pants don't have pockets and my music is on my iPhone so I don't l know how I would bring it with me?

Music from computer to iPhone?

My computer has no internet atm, but is there a way I can sync some of the music I have on it to my iphone or something?

Why won't the ringtone work on my Iphone 4?

I made a Barbie Girl ringtone, dragged it to the Tones file and everything. I changed it from 4ma to 4mr. I synced it all, I synced the ringtone, and synced it again. Then i called the phone and it's still Marimba. WHY.

How to ehance a security video. (CRIME SCENE)?

Today our store got robbed and the guy was caught on video but the quality of the face in the video isn't that clear. I want to know is there a way to enhance the video so it can show the face? I'm not even sure if the cops is going to do it and I'm not even sure if they upload the video in their USB but they did use their iphone to record it from the tv. The cops also told me to give them a copy of the video if we can. I just want to make sure we caught his face on camera so it's easy to recognized him.