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The PC speaker is a simple loudspeaker built into IBM PC compatible computers. Unlike a speaker used with a sound card, the PC speaker is only meant to produce square waves to produce sounds such as beeping. Modern computers utilize a piezoelectric buzzer or a small speaker as the PC speaker.
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Charge carrier density, also known as carrier concentration, denotes the number of charge carriers per volume. In SI units, it is measured in m −3. As with any density, in principle it can depend on position. However, usually carrier concentration is given as a single number, and represents the average carrier density over the whole material.
President James A. Garfield with James G. Blaine after being shot by Charles J. Guiteau. The assassination of James A. Garfield, the 20th president of the United States, began at the Baltimore and Potomac Railroad Station in Washington, D.C., at 9:20 AM on Saturday, July 2, 1881, less than four months after he took office.
Sketchbook (formerly StudioPaint, also referred to as Autodesk SketchBook) is a raster graphics software app intended for expressive drawing and concept sketching also for making animations (Jelly Boo, Teatralka).
General 3.5 mm computer headsets come with two 3.5 mm connectors: one connecting to the microphone jack and one connecting to the headphone/speaker jack of the computer. 3.5 mm computer headsets connect to the computer via a sound card, which converts the digital signal of the computer to an analog signal for the headset. USB computer headsets ...
Apple's iPad (left) and Amazon's Fire, two popular tablet computers, displaying the Wikipedia website. A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package.
Charge is the fundamental property of matter that exhibits electrostatic attraction or repulsion in the presence of other matter with charge. Electric charge is a characteristic property of many subatomic particles. The charges of free-standing particles are integer multiples of the elementary charge e; we say that electric charge is quantized.