Ais a device that not only provides surge protection, but also furnishes your computer with battery backup power during a power outage

Which are steps taken to diagnose a computer problem? a) reproducing the problem and using error codes b) reproducing the problem and troubleshooting c) using error codes and troubleshooting d) using error codes and stepping functions

What is the difference between windows 7 and windows 10?

How do we use the sumif formula (when dealing with different formats) ?