* Digital raster graphic ( DRG )-digital scan of a paper USGS topographic map

* Digital Line Graph ( DLG )-a USGS format for vector data

USGS Digital elevation model of the San Francisco volcanic field

The resolution inside the US is high enough to clearly discern individual buildings, houses, cars ( USGS Digital Ortho layer ) and even the shadows of people ( metropolitan areas in USGS Urban Ortho layer ).

** USGS Digital Ortho: 1 m ( grayscale ; near full coverage )

Photo credit: USGS Digital Data Series

* Climate for the 21st Century and Beyond from a Calibrated Solar-Output Model with Dr. Charles A. Perry ( USGS ), 2001, in West, G. J., and Buffaloe, L. D., eds., Proceedings of the Seventeenth Annual Pacific Climate Workshop, May 22 – 25, 2000, Two Harbors, Santa Catalina Island, California: Interagency Ecological Program for the San Francisco Estuary Technical Report 67, p. 120.

It can be used to create DTM ( Digital Terrain Models ) and DEM ( Digital Elevation Models ) this is quite a common practice for larger areas as a plane can take in a 1km wide swath in one flyover.

The term Digital Elevation Model is often used as a generic term for DSMs and DTMs, only representing height information without any further definition about the surface.

* TanDEM-X: generation of a world-wide, consistent, timely, high-precision Digital Elevation Model

Satellite radar mapping is one of the major techniques of generating Digital Elevation Models ( see below ).

Digital Elevation Models, for example, have often been created not from new remote sensing data but from existing paper topographic maps.

* DTED-National Geospatial-Intelligence Agency ( NGA )' s Digital Terrain Elevation Data

Based on the regular grid DEM ( Digital Elevation Model ) in DRGS, ROAM algorithm is applied to create a more dynamic model, which will gee consideration to the importance of different features and select correspondence level of detail.

At its introduction, the 68000 was first used in high-priced systems, including multiuser microcomputers like the WICAT 150, early Alpha Microsystems computers, Sage II / IV, Tandy TRS-80 Model 16, and Fortune 32: 16 ; single-user workstations such as Hewlett-Packard's HP 9000 Series 200 systems, the first Apollo / Domain systems, Sun Microsystems ' Sun-1, and the Corvus Concept ; and graphics terminals like Digital Equipment Corporation's VAXstation 100 and Silicon Graphics ' IRIS 1000 and 1200.

* Digital Earth Reference Model ( DERM )

* Film Digital Line, Model FDL60 and FDL90 Telecine from Robert Bosch GmbH, Fernseh Div.

Surfaces represented by a Digital Surface Model include buildings and other objects.

Bezmiechowa airfield 3D Digital Surface Model obtained using Pteryx UAV flying 200 m above hilltop

Digital Surface Model of motorway interchange construction site.

Free DEMs are also available for Mars: the MEGDR, or Mission Experiment Gridded Data Record, from the Mars Global Surveyor's Mars Orbiter Laser Altimeter ( MOLA ) instrument ; and NASA's Mars Digital Terrain Model ( DTM ).

In practice, surveyors first sample heights in an area, then use these to produce a Digital Land Surface Model ( also known as a digital elevation model ).

Depending on the final use ( navigation charts, Digital Terrain Model, volume calculation for dredging, topography, Bathymetry ) this data must be thinned out.

* HSC50 ( Hierarchical Storage Controller Model 50 ), a mass storage controller from Digital Equipment Corporation implementing their Mass Storage Control Protocol

The DCC protocol is defined by the Digital Command Control Working group of the National Model Railroad Association ( NMRA ).

Test projects included the F-100 Digital Electronic Engine Control, F-16C & D Model Structural and Performance Testing, F-16 Maximum Performance Braking Tests, and F-16 Mobile Arrestment Qualification.

Steve " Slug " Russell is a programmer and computer scientist most famous for creating Spacewar !, one of the earliest videogames, in 1961 with the fellow members of the Tech Model Railroad Club at MIT working on a DEC Digital PDP-1.

Don Dorsey used the following synthesizers to create the soundtrack: Moog Model III, Mini-Moog, Steiner-Parker Synthacon, Oberheim 8-voice, Sequential Circuits Prophet-5, Fender Rhodes Piano, New England Digital Synclavier II, Bode 7702 Vocoder, Roland MKS-80 Super Jupiter, Yamaha DX7 and Yamaha TX7.

* MDIM ( Viking-Mars Digital Image Model )

The Trusted Digital Repository Model outlines relationships among these attributes.

The photogrammetry ( using flight-derived stereoimagery at high resolution ) is also used to maintain height models of the topography ( Digital Terrain Model or DTM ).

Digital distribution also opens the door to new business models ( e. g., the Open Music Model ).

Academic clubs at SAS include Business Club, Debate, Math Club ( which allows students to compete in the Southeast Asian Math Competition ), Knowledge Bowl, Digital Frontiers, Speech Club, and Model United Nations ( a student-led simulation of the United Nations where each student represents a nation ).

The DECsystem 5900 and DECsystem 5900 / 260 are rack-mounted DECstation 5000 Model 240 and DECstation Model 260 workstations, respectively, positioned as mid-range servers by Digital.