Dell computer reboot

I powered off my computer last night and it was working just fine but when I powered it on this morning it started making a small beeping noise and then stopped and on the screen it said "hard-disk drive failure. Strike F1 key to continue, F2 to run the setup utility" I pressed F1 and it popped up "No boot device available. SATA 0: None, SATA 1: None, SATA 2: Installed, SATA 3: None" and then the same second part. I didn't want to click anything or go into the computer and change anything because I'm not the best with computers and I don't really know what I'm doing and I don't want to mess anything up.