The maximum amount of RAM that can be installed and utilised is the minimum of the following: 1  Maximum amount of memory supported by the memory controller for the Nehalem microarchitecture the memory controller is part of the CPU. Older systems usually had the memory controller on the motherboard.
Basic Electromagnetic Wave Properties - Electromagnetic radiation is characterized by a broad range of wavelengths and frequencies, each associated with a specific intensity (or amplitude) and quantity of energy.
Physicists classify light waves by their energies (wavelengths). Labeled in increasing energy, we might draw the entire electromagnetic spectrum as shown in the figure below: The Electromagnetic Spectrum. Notice how small the visible region of the spectrum is, compared to the entire range of wavelengths. Notice that radio, TV, and microwave signals are all light waves, they simply lie at wavelengths (energies) that your eye doesn't respond to.