LDS-1 (Line Drawing System-1)
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LDS-1 (Line Drawing System-1) was a calligraphic (vector, rather than raster) display processor and display device created by
Evans & Sutherland Evans & Sutherland is a pioneering American computer firm in the computer graphics field. Its current products are used in digital projection environments like planetariums. Its simulation business, which it sold to Rockwell Collins, sold products ...
. This model was known as the first graphics device with a
graphics processing unit A graphics processing unit (GPU) is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobi ...
.


Features

It was controlled by a variety of host computers. Straight lines were smoothly rendered in real-time animation. General principles of operation were similar to the systems used today: 4x4 transformation matrices, 1x4 vertices. Possible uses included flight simulation (in the product brochure there are screenshots of landing on a carrier), scientific imaging and
GIS A geographic information system (GIS) is a type of database containing Geographic data and information, geographic data (that is, descriptions of phenomena for which location is relevant), combined with Geographic information system software, sof ...
systems.


History

The first LDS-1 was shipped to the customer ( BBN) in August 1969. Only a few of these systems were ever built. One was used by the
Los Angeles Times The ''Los Angeles Times'' (abbreviated as ''LA Times'') is a daily newspaper that started publishing in Los Angeles in 1881. Based in the LA-adjacent suburb of El Segundo since 2018, it is the sixth-largest newspaper by circulation in the Un ...
as their first typesetting/layout computer. One went to
NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding t ...
Ames Research Center for Human Factors Research. Another was bought by the
Port Authority of New York The Port Authority of New York and New Jersey, PANYNJ; stylized, in logo since 2020, as Port Authority NY NJ, is a joint venture between the U.S. states of New York and New Jersey, established in 1921 through an interstate compact authorized ...
to develop a tugboat pilot trainer for navigation in the harbor. The MIT Dynamic Modeling had one, and there was a program for viewing an ongoing game of ''
Maze War ''Maze'', also known as ''Maze War'', is a 3D multiplayer first-person shooter list of maze video games, maze game originally developed in 1973 and expanded in 1974. The first version was developed by high school students Steve Colley, Greg Thomp ...
''.


See also

* , where Project Logos had an LDS-1.


References


External links


LDS-1 documentation


See also

*
Vector General Vector General (VG) was a series of graphics terminals and the name of the Californian company that produced them. They were first introduced in 1969 and were used in computer labs until the early 1980s. The terminals were based on a common platfo ...
*
SuperPaint SuperPaint was a pioneering graphics program and framebuffer computer system developed by Richard Shoup at Xerox PARC. The system was first conceptualized in late 1972 and produced its first stable image in April 1973. SuperPaint was among the e ...
{{Evans & Sutherland Computer graphics Graphical terminals History of human–computer interaction