"FRU" = "Field-Replaceable Unit" Sometimes, you needed to clean the mouse because it felt dirty after rubbing its ball. Easy enough to drop the ball after pop

"FRU" = "Field-Replaceable Unit" Sometimes, you needed to clean the mouse because it felt dirty after rubbing its ball. Easy enough to drop the ball after popping it out, then you're chasing mouse balls across the office. Don't lose it... https://en.m.wikipedia.org/wiki/Computer_mouse#Mechanical_mice https://en.m.wikipedia.org/wiki/Computer_mouse#Mechanical_mi...