Gaming input
Motion detection
Microsoft Kinect detects hand motions at a certain optimum distance using a camera - no external devices are required.
Containment/ Size
Computer case
The case/ tower provides power-supply and cooling. Good cooling systems try to be noiseless - they rely on airflow or ensure that the fan speed is usually low.
Size
Computer’s processing and storage components are sometimes fit into the monitor or under keyboard in case of a notebook computer, or in a small case.
Best and economical
Demand and competition ensure that fairly powerful laptops are now available at a price comparable to equally powerful desktop machines.