There are levels of protection that you can apply to help protect your PC, your data from loss or damage as a result of power problems. And yes you have to shell out cash in order to have better protection, the more you spend the better protection you get, with costs ranging from near zero to several hundred dollars or even more. A Decent Surge Protector, and an Uninterruptible Power Supply(UPS) starts in around $40 to $60 bucks to about $80, so better save up, it’s worth it.
And Yes, keep in mind that a higher Joule rating generally means more protection, and also it does the filtering, enhancing or modifying the utility power, special circuitry and batteries are used to prevent the PC from losing power during a disruption (blackout) or voltage sag (brownout). These units are called different names depending on their exact design, but all fit into the general category of backup power.
