Radio antennas - PowerPoint PPT Presentation

Figure 28-1 Constructive and Destructive Interference

Figure 28-1 Constructive and Destructive Interference. Figure 28-17 Diffraction of Water Waves. Diffraction: the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge . Figure 28-4 Huygens’s Principle.

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Input Devices

Input Devices. Input. Data or instructions entered into memory of computer Input device is any hardware component used to enter data or instructions. Input - Types. Data Unprocessed text, numbers, images, audio, and video Commands Programs Commands User Responses. Keyboards.

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