Birthstones: Discover Your Birthstone Color By Month Polished birthstones for each of the 12 months Birthstones and their vivid colors have long been a way to connect your birth month with rare and unique gemstones.
An audio interface is a piece of hardware that expands and improves the sonic capabilities of a computer. Some audio interfaces give you the ability to connect professional microphones, instruments and other kinds of signals to a computer, and output a variety of signals as well.
A keyboard is also used to give commands to the operating system of a computer, such as Windows ' Control-Alt-Delete combination, which brings up a task window or shuts down the machine. A command-line interface is a type of user interface operated entirely through a keyboard, or another device doing the job of one.