Monitoring The Virus

(My brother has a laptop with a broken screen. He has the habit of connecting the family PC’s monitor to it to work on his laptop. Our family PC at this point is very slow due to it still having Windows Vista and the fact that my brothers did many unsafe downloads, and it has bad wireless to boot. My mother isn’t very tech savvy and thus likes to blame the slowness of the PC on everything anyone downloads even if it’s entirely harmless. The following happens when the PC is being agonizingly slow once again.)

Mom: “The PC is slow again! It has a virus for sure!”

Me: “Sure, I’ll check it out in a minute, but remember, this PC has been slow for a long time—”

Mom: “No, [Brother] must have put a virus on it!”

Me: “[Brother] has only been using his laptop…”

Mom: “So? He connected it to the monitor and now my PC has a virus!”

Me: “Do you even believe what you’re saying?”

Mom: “Of course! The virus got into our monitor and now it’s in my PC! It’s the only explanation!”

Me: “Mom… monitors only transfer a video signal. A virus can only be put on a hard drive, and this monitor, or any other monitor we have, doesn’t have a hard drive.”

Mom: “But it’s slow!”

Me: “Mom, this PC has been heavily used and it’s pretty old now. I can look into building a PC for you like I did for myself—”

Mom: “No, I don’t want you to screw that up! If we’re gonna get a new PC, I’m getting one from a store so that I know everything is fine and it doesn’t have stuff that I don’t need!”