If you think about it, most new kit will perform its basic functions; a phone will make and receive calls, a printer will make marks on paper. So they're at least 50% of the way to being perfect. The other 50% is really how well they do it, how easy they are to use, how close they get to the ideal. I can't see how you can score a device much below 50%, unless it doesn't perform its basic functions.
Review scores
If you think about it, most new kit will perform its basic functions; a phone will make and receive calls, a printer will make marks on paper. So they're at least 50% of the way to being perfect. The other 50% is really how well they do it, how easy they are to use, how close they get to the ideal. I can't see how you can score a device much below 50%, unless it doesn't perform its basic functions.