Smart contact lenses for diabetics to measure sugar levels in tears! Diabetics or diabetes patients need to check their glucose levels frequently, that involves painful pricking of a finger to do a blood test.
Can't remember those short cuts your children showed you on the computer? Here is a chart entitled the Essential Keyboard Shortcuts (grouped by type) that has the most commonly used computer shortcuts.
Port - Most input/output devices are outside the computer case. These devices communicate with components inside the computer case through a wireless connection or through pcables attatched to the case at a connection called a port.