A mickey is a unit of measurement for the speed and movement direction of a computer mouse. The speed of the mouse is the ratio between how many pixels the cursor moves on the screen and how many centimeters you move the mouse on the mouse pad. The directional movement is called the horizontal mickey count and the vertical mickey count. One mickey is approximately 1/200th of an inch.
In networking, a greenfield deployment is the installation and configuration of a network where none existed before, for example in a new office. A brownfield deployment, in contrast, is an upgrade or addition to an existing network and uses some legacy components. The terms come from the building industry, where undeveloped land (and especially unpolluted land) is described as greenfield and previously developed (often polluted and abandoned) land is described as brownfield.
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