how do i check on the condition of the hard drive...like how do i know if it's defective?...is there some kind of test disk that i can put in or something....how do i fix this problem...is it even...

So i'm trying to get an old computer to work...it's a 446 mhz processor or something...it's old and it's a gateway...i connected the wires for the keyboard, monitor, and mouse.
When i turn it on it...