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Autodesk started development of AutoCAD in 1982, initially using the first version of the AutoLISP language to provide the ability to view, edit, and print 2D drawing files. AutoCAD was first made available as a desktop app on microcomputers with internal graphics controllers, running on the CP/M operating system. AutoCAD was first released to the public in December 1982 as a desktop application (the first CAD program for the PC platform), a response to industry demand for a user friendly CAD program that would run on a personal computer instead of a mainframe.
In 1983 Autodesk introduced the first release of the AutoCAD R14 application, which removed the graphics display capability from the CP/M and DOS operating systems and instead used the microcomputer's built-in graphics screen.
In 1984 Autodesk introduced the AutoCAD graphics system, which later that year replaced the C64, C100, and C128 standard IBM-compatible graphics terminals. The "graphics system" was replaced with the V-Table™ in 1987 and the R32 in 1989.
AutoCAD drawings were created in a layer-based model. In AutoCAD, each layer is a reference to the Z-coordinate of a geometric surface or section (i.e., an "axis", such as a line, circle, or rectangle) and an image.
With the introduction of an interface program called AutoLISP, AutoCAD became a programming language, and programming of the AutoCAD graphics system followed. AutoCAD, like most CAD programs at the time, used the then-common 3D style system, where each drawing element was represented by a 3D coordinate system, including a Z-coordinate.
The first AutoLISP release, released in August 1985, was called AutoLISP version 0.5. The AutoLISP language was a combination of a programming language and graphics language. AutoLISP was developed in an effort to use the graphics system to dynamically generate the content of an AutoCAD drawing window. The AutoLISP language consisted of drawing commands used to define the drawing elements of a drawing.
AutoLISP was compatible with the ASCII text format of the standard CP/M operating system. (In contrast, the graphic-based graphics system of the C64 operating system used a 16-bit graphics system. In addition, the C100
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Legacy functionality 
Autodesk AutoCAD Torrent Download began with only 2D drafting features. Many features were added over the years, making AutoCAD the most popular 3D drafting program.
 2D Drafting 
The company introduced a flat polyline-based 2D drafting system in 1983. In 1986 they added the first true 3D wireframe drafting system. AutoCAD was later able to import AutoCAD DXF files.
In 1992 the 2D drafting system was replaced with a true 3D solid modeling system. This system used the number of commands available in AutoCAD to create the 3D objects, the layer system was upgraded to support 3D and the new command hierarchy was introduced.
AutoCAD has always supported standard 3D features, such as single and multiple views, and 3D animation, to name a few. In 1994,  3D visualization was added. In 1995, the family of 3D features were greatly improved. 3D visual styles and animation were introduced, supporting many features of modeling such as variation, constraints and constraints analysis. In 1996, the animation feature was improved, and other modeling and simulation tools were introduced.
In 1998, 3D visual styles were further improved and were the first to be based on a unique visual characteristics, which enabled AutoCAD to more easily distinguish between similar styles. In 2000, the command hierarchy and import/export functions were improved. The base for the success of 3D was defined.
In 2002, the Dynamic Input System (Dyn. Input), a command system for working directly with objects and processes, was introduced. In 2003, the ability to move objects with animations was improved, and in 2004 the ability to edit objects was introduced. In 2005, the ability to place objects into drawings was introduced. In 2006, the ability to create a template was introduced. In 2007, the ability to generate comments, the ability to document a drawing and the ability to record keyboard shortcuts were introduced.
In 2009, 3D Revisions was introduced.
In 2014, the ability to work in 3D environments was introduced.
In 2017, the ability to create views in 3D was introduced.
3D Features 
Most of AutoCAD's features are modeled after those found in AutoCAD LT (3D) which has always been sold for a lower price than AutoCAD.
Basic AutoCAD 
3D: The 3D feature was originally introduced in 1992
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