Sure, this screen is great if you just want to access apps such as the news app or just get a quick glimpse of what’s happening in your social networks. Microsoft forced the Windows 8 start screen with the tile-interface down every user’s throat in order to pursue its touch-first philosophy. Think we are wrong? Try playing Fruit Ninja for over 15 minutes on a touchscreen laptop or monitor and let us know how you feel. If the trackpad of a laptop comes with the Windows 8 gestures baked in, then there is fairly little motivation to move your hands away from the keyboard. In either case, to use the touchscreen, you have to stretch out your arm to access the screen, which can get annoying for longer durations. There is a certain limited distance between the keyboard and the monitor and comparatively lesser distance between the touchscreen on a laptop and its keyboard. Fancy names such as the 'Gorilla Arm' have been thrown around to describe the pain felt by the arm when it is outstretched to interact with a vertical touchscreen for longer periods of time.

After prolonged usage, your arm will feel uncomfortable as it is hanging in the air without any support to your elbow. Reaching out to touch the screen on your laptop or your monitor is not as ergonomic as, say, using it on a tablet or a smartphone. Reaching out to touch the screen of your laptop or monitor of your AIO will introduce fatigue on prolonged use

Windows 8 touch screen desktops