Unlike a laptop, which is portable, a desktop computer is meant to stay at one location. Desktop computer overview. Below is a picture of a computer with each of the main components that help make up a computer. In the picture, you can see the Desktop computer, Flat-panel display, Speakers, Keyboard, and Mouse.
GLOBE [http://www.ngdc.noaa.gov/mgg/topo/globe.html] is also a global digital elevation model (DEM) with a 1 kilometer resolution. This project was headed by the Committee on Earth Observation Satellites. File Format: Binary Raster File *.dem Importing into ArcMap 1. In Windows Explorer navigate to the directory which contains the dataset (.dem) file
Shaded relief effect is derived from a digital elevation model (DEM), which is a raster dataset of elevation values. DEMs and hillshades are separate datasets-a DEM contains actual elevation values while a hillshade, though also a raster, contains brightness values.owever, there are a number of key points that are relevant to all hillshade creation. Data sources: For the U.S., DEMs are commonly obtained from USGS and are available in a range of resolutions from 10-meter (high resolution) to 90-meter (lower resolution) cell sizes.