Wikipedia

AutoCAD

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AutoCAD is a 2D and 3D computer-aided design (CAD) software application developed by Autodesk.[1] It was first released in December 1982 for the CP/M and IBM PC platforms as a desktop app running on microcomputers with internal graphics controllers.[2] Initially a DOS application, subsequent versions were later released for other platforms including Classic Mac OS (1992), Microsoft Windows (1993) and macOS (2010), iOS (2010), and Android (2011).

AutoCAD
Developer(s)Autodesk
Initial releaseDecember 1982; 42 years ago (1982-12)
Stable release
AutoCAD 2025 (25.0) / March 26, 2024; 9 months ago (2024-03-26)
Operating systemWindows, macOS
Available in14 languages
List of languages
English, German, French, Italian, Spanish, Korean, Chinese Simplified, Chinese Traditional, Japanese, Brazilian Portuguese, Russian, Czech, Polish and Hungarian
TypeComputer-aided design
LicenseSoftware as a service
Websitewww.autodesk.com/autocad

AutoCAD is a general drafting and design application used in industry by architects, project managers, engineers, graphic designers, city planners, and other professionals to prepare technical drawings. After discontinuing the sale of perpetual licenses in January 2016,[3] commercial versions of AutoCAD are licensed through a term-based subscription or Autodesk Flex, a pay-as-you-go option introduced on September 24, 2021. Subscriptions to the desktop version of AutoCAD include access to the web and mobile applications. However, users can subscribe separately to the AutoCAD Web App online or AutoCAD Mobile through an in-app purchase.

History

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Before AutoCAD was introduced, most CAD programs ran on mainframe computers or minicomputers, with each CAD operator (user) working at a separate graphics terminal.[4]

Origins

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A man using AutoCAD 2.6 to digitize a drawing of a school building.

AutoCAD was derived from a program that began in 1977, and then released in 1979[5] called Interact CAD,[6][7][8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.[9][10]

The first version by Autodesk was demonstrated at the 1982 Comdex and released that December. AutoCAD supported CP/M-80 computers.[11] As Autodesk's flagship product, by March 1986 AutoCAD had become the most ubiquitous CAD program worldwide.[12] The first UNIX version was Release 10 for Xenix in October 1989, while the first version for Windows was Release 12, released in February 1993.[13][14]

Features

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Compatibility with other software

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Many software applications such as Autodesk Civil 3D and ESRI ArcMap 10 permits export as AutoCAD drawing files. Third-party file converters exist for specific formats such as Bentley MX GENIO Extension, PISTE Extension (France), ISYBAU (Germany), OKSTRA and Microdrainage (UK);[15] also, conversion of .pdf files is feasible, however, the accuracy of the results may be unpredictable or distorted. For example, jagged edges may appear. Several vendors provide online conversions for free such as Cometdocs.

Language

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AutoCAD and AutoCAD LT are available for English, German, French, Italian, Spanish, Japanese, Korean, Chinese Simplified, Chinese Traditional, Brazilian Portuguese, Russian, Czech, Polish and Hungarian (also through additional language packs).[16] The extent of localization varies from full translation of the product to documentation only. The AutoCAD command set is localized as a part of the software localization.

Extensions

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AutoCAD supports a number of APIs for customization and automation. These include AutoLISP, Visual LISP, VBA, .NET and ObjectARX. ObjectARX is a C++ class library, which was also the base for:

  • products extending AutoCAD functionality to specific fields
  • creating products such as AutoCAD Architecture, AutoCAD Electrical, AutoCAD Civil 3D
  • third-party AutoCAD-based application

There are a large number of AutoCAD plugins (add-on applications) available on the application store Autodesk Exchange Apps.[17] AutoCAD's DXF, drawing exchange format, allows importing and exporting drawing information.

Vertical integration

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Autodesk has also developed a few vertical programs for discipline-specific enhancements such as:

  • Advance Steel
  • AutoCAD Architecture
  • AutoCAD Electrical
  • AutoCAD Map 3D
  • AutoCAD Mechanical
  • AutoCAD MEP
  • AutoCAD Plant 3D
  • Autodesk Civil 3D

Since AutoCAD 2019 several verticals are included with AutoCAD subscription as Industry-Specific Toolset.

For example, AutoCAD Architecture (formerly Architectural Desktop) permits architectural designers to draw 3D objects, such as walls, doors, and windows, with more intelligent data associated with them rather than simple objects, such as lines and circles. The data can be programmed to represent specific architectural products sold in the construction industry, or extracted into a data file for pricing, materials estimation, and other values related to the objects represented.

Additional tools generate standard 2D drawings, such as elevations and sections, from a 3D architectural model. Similarly, Civil Design, Civil Design 3D, and Civil Design Professional support data-specific objects facilitating easy standard civil engineering calculations and representations.

Softdesk Civil was developed as an AutoCAD add-on by a company in New Hampshire called Softdesk (originally DCA). Softdesk was acquired by Autodesk, and Civil became Land Development Desktop (LDD), later renamed Land Desktop. Civil 3D was later developed and Land Desktop was retired.

Platforms

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An architectural detail drafted in AutoCAD (Windows)
Operating system Latest release
Windows 10 October 2018 Update and later 2025 (x64)[18]
10 2022 (x64)[19]
8.1 2021 (x64)[20]
8 2016 (IA-32,x64)[21]
7 2020 (x64)[22]
7, 8.1 and 10 2019 (IA-32)[23]
Vista 2012[24]
XP 2014 (IA-32,x64)[25]
2000 2008[26]
NT 4.0 2004 (IA-32)[27]
98 and Me 2002[28]
95 2000i
NT 3.51 Release 14 (IA-32)
3.1x, NT 3.5–3.51 (IA-32, Alpha) Release 13[29]
macOS 12 and later 2025
11 2024
10.15 2023
10.14 2022
10.13 2021
10.12 2019
10.11 2018
10.10 2017
10.9 2016
10.8 2015
10.6–10.7 2013 (x64)
10.5 2011 (x64)[30]
7.x Release 12
6.x Release 10
Solaris 2.0, IRIX, AIX, HP-UX and DOS (386) Release 13
SunOS 4.1 and Ultrix Release 12
DOS (286) Release 11
Xenix and OS/2 1.x Release 10
CP/M-80 and CP/M-86 1.4

File formats

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AutoCAD's native file formats are denoted either by a .dwg, .dwt, .dws, or .dxf filename extension. .dwg and, to a lesser extent, .dxf, have become de facto, if proprietary, standards for CAD data interoperability, particularly for 2D drawing exchange.[31]

The primary file format for 2D and 3D drawing files created with AutoCAD is .dwg. While other third-party CAD software applications can create .dwg files, AutoCAD uniquely creates RealDWG files.[32] The drawing version code changes between AutoCAD releases.[33]

Using AutoCAD, any .dwg file may be saved to a derivative format. These derivative formats include:

  • Drawing Template Files .dwt: New .dwg are created from a .dwt file. Although the default template file is acad.dwt for AutoCAD and acadlt.dwt for AutoCAD LT, custom .dwt files may be created to include foundational configurations such as drawing units and layers.
  • Drawing Standards File .dws: Using the CAD Standards feature of AutoCAD, a Drawing Standards File may be associated to any .dwg or .dwt file to enforce graphical standards.
  • Drawing Interchange Format .dxf: The .dxf format is an ASCII representation of a .dwg file, and is used to transfer data between various applications.[34]

Variants

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AutoCAD LT

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AutoCAD LT is the lower-cost version of AutoCAD, with reduced capabilities, first released in November 1993. Autodesk developed AutoCAD LT to have an entry-level CAD package to compete in the lower price level. Priced at $495, it became the first AutoCAD product priced below $1000. It was sold directly by Autodesk and in computer stores unlike the full version of AutoCAD, which must be purchased from official Autodesk dealers. AutoCAD LT 2015 introduced Desktop Subscription service from $360 per year; as of 2018, three subscription plans were available, from $50 a month to a 3-year, $1170 license. Since AutoCAD LT 2024, AutoCAD LT support LISP customization.

While there are hundreds of small differences between the full AutoCAD package and AutoCAD LT, there are a few recognized major differences[35] in the software's features:

  • 3D capabilities: AutoCAD LT lacks the ability to create, visualize and render 3D models as well as 3D printing.
  • Network licensing: AutoCAD LT cannot be used on multiple machines over a network.
  • Customization: AutoCAD LT does not support customization with LISP, ARX, .NET and VBA (Feature introduced with release 2024)
  • Management and automation capabilities with Sheet Set Manager and Action Recorder.
  • CAD standards management tools.

AutoCAD Mobile and AutoCAD Web

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AutoCAD Mobile and AutoCAD Web (formerly AutoCAD WS and AutoCAD 360)[36] is an account-based mobile and web application enabling registered users to view, edit, and share AutoCAD files via mobile device and web[37] using a limited AutoCAD feature set — and using cloud-stored drawing files. The program, which is an evolution and combination of previous products, uses a freemium business model with a free plan and two paid levels, including various amounts of storage, tools, and online access to drawings. 360 includes new features such as a "Smart Pen" mode and linking to third-party cloud-based storage such as Dropbox. Having evolved from Flash-based software, AutoCAD Web uses HTML5 browser technology available in newer browsers including Firefox and Google Chrome.

AutoCAD WS began with a version for the iPhone and subsequently expanded to include versions for the iPod Touch, iPad, Android phones, and Android tablets.[38] Autodesk released the iOS version in September 2010,[39] following with the Android version on April 20, 2011.[40] The program is available via download at no cost from the App Store (iOS), Google Play (Android) and Amazon Appstore (Android).

In its initial iOS version, AutoCAD WS supported drawing of lines, circles, and other shapes; creation of text and comment boxes; and management of color, layer, and measurements — in both landscape and portrait modes. Version 1.3, released August 17, 2011, added support for unit typing, layer visibility, area measurement and file management.[37] The Android variant includes the iOS feature set along with such unique features as the ability to insert text or captions by voice command as well as manually.[40] Both Android and iOS versions allow the user to save files on-line — or off-line in the absence of an Internet connection.[40]

In 2011, Autodesk announced plans to migrate the majority of its software to "the cloud", starting with the AutoCAD WS mobile application.[41]

According to a 2013 interview with Ilai Rotbaein, an AutoCAD WS product manager for Autodesk, the name AutoCAD WS had no definitive meaning, and was interpreted variously as Autodesk Web Service, White Sheet or Work Space.[42] In 2013, AutoCAD WS was renamed to AutoCAD 360.[43] Later, it was renamed to AutoCAD Web App.

Student versions

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AutoCAD is licensed, for free, to students, educators, and educational institutions, with a 12-month renewable license available. Licenses acquired before March 25, 2020, were a 36-month license, with its last renovation on March 24, 2020.[44] The student version of AutoCAD is functionally identical to the full commercial version, with one exception: DWG files created or edited by a student version have an internal bit-flag set (the "educational flag"). When such a DWG file is printed by any version of AutoCAD (commercial or student) older than AutoCAD 2014 SP1 or AutoCAD 2019 and newer, the output includes a plot stamp/banner on all four sides. Objects created in the Student Version cannot be used for commercial use. Student Version objects "infect" a commercial version DWG file if they are imported in versions older than AutoCAD 2015 or newer than AutoCAD 2018.[45]

Version history

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Main article: AutoCAD version history

See also

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Open source CAD software:

References

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  1. ^ "Autodesk, Inc". FundingUniverse. Lendio. 2012. Retrieved 29 March 2012.
  2. ^ "Chapter 8 : Autodesk and AutoCAD" (PDF). Cadhistory.net. Archived (PDF) from the original on 2022-10-09. Retrieved 2016-03-30.
  3. ^ "What happened to perpetual licenses?". Autodesk.com. Retrieved 2023-08-16.
  4. ^ "Chapter 2 : A Brief Overview of the History of CAD" (PDF). Cadhistory.net. Archived (PDF) from the original on 2022-10-09. Retrieved 2016-03-30.
  5. ^ Riddle, Michael. "About". Archived from the original on 27 October 2016. Retrieved 24 January 2014. I've been building CAD products for over 29 years now, starting with Interact for the Marinchip 9900 released back in 1979, one of the first PC-based CAD programs available. Interact went on to become the architectural basis for the early versions of AutoCAD. I was one of the original 18 founders of that company.
  6. ^ Plantec, Peter (7 January 2012). "The Fascinating Story of How Autodesk Came to Be (Part 1)". Studio Daily. Access Intelligence. Archived from the original on 12 November 2020. Retrieved 25 February 2013.
  7. ^ "About". Michael Riddle's Thoughts. Archived from the original on 27 October 2016. Retrieved 25 February 2013.
  8. ^ Grahame, James (17 May 2007). "Mike Riddle's Prehistoric AutoCAD". Retro Thing.
  9. ^ Walker, John (1 May 1982). "Information letter #5". Retrieved 24 January 2014.
  10. ^ Yare, Evan (17 Feb 2012). "AutoCAD's Ancestor". 3D CAD World. Retrieved 24 January 2014.
  11. ^ One Company's CAD Success Story, InfoWorld, 3 December 1984, retrieved 19 July 2014
  12. ^ "Part 2 CAD/CAM/CAE", 25 Year retrospective, Computer Graphics World, 2011, archived from the original on 2011-11-04, retrieved 29 March 2012
  13. ^ "AUTODESK PUTS THE AUTOCAD UP UNDER THE SCO XENIX V.386". NEW STATESMAN MEDIA GROUP LTD. October 10, 1989. Retrieved December 21, 2023.
  14. ^ David Weisberg (March 27, 2023). "Autodesk and AutoCAD". Shapr3D Zrt. Retrieved December 21, 2023.
  15. ^ "AutoCAD Civil 3D 2011 Drawing Compatibility" (PDF). AutoCAD Civil 3D 2011 User's Guide. Autodesk. April 2010. pp. 141–142. Archived (PDF) from the original on 2022-10-09. Retrieved January 29, 2013.
  16. ^ "AutoCAD 2020 Language Packs | AutoCAD | Autodesk Knowledge Network". knowledge.autodesk.com. Retrieved 2020-03-26.
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  18. ^ "System requirements for AutoCAD 2025 including Specialized Toolsets | AutoCAD 2025 | Autodesk Support". Retrieved May 3, 2024.
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  22. ^ "System requirements for AutoCAD 2020 including Specialized Toolsets | AutoCAD 2020 | Autodesk Support". Retrieved December 28, 2023.
  23. ^ "System requirements for AutoCAD 2019 including Specialized Toolsets | AutoCAD 2019 | Autodesk Support". Retrieved December 28, 2023.
  24. ^ "System requirements for AutoCAD 2012 | AutoCAD 2012 | Autodesk Support". Retrieved December 28, 2023.
  25. ^ "System requirements for AutoCAD 2014 | AutoCAD 2014 | Autodesk Support". Retrieved December 28, 2023.
  26. ^ "System requirements for AutoCAD 2008 | AutoCAD 2008 | Autodesk Support". Retrieved December 28, 2023.
  27. ^ Hurley, Shaan (July 30, 2012). "System requirements for AutoCAD 2004 to 2013". Between the Lines. Archived from the original on August 14, 2012. Retrieved June 22, 2023.
  28. ^ Hurley, Shaan (June 17, 2001). "AutoCAD 2002 (17) June 2001". Between the Lines. Archived from the original on February 28, 2008. Retrieved June 22, 2023.
  29. ^ "AutoCAD release 13". Autodesk, Inc. 1994. Retrieved July 5, 2022.
  30. ^ "AutoCAD for Mac". Autodesk.com. Archived from the original on August 16, 2011.
  31. ^ Björk, Bo-Christer; Laakso, Mikael (2010-07-01). "CAD standardisation in the construction industry — A process view". Automation in Construction. Building information modeling and interoperability. 19 (4): 398–406. doi:10.1016/j.autcon.2009.11.010. ISSN 0926-5805.
  32. ^ "RealDWG Platform Technologies". Autodesk Developer Network. Autodesk. Retrieved January 14, 2022.
  33. ^ "Drawing format version codes for AutoCAD". Autodesk Support. November 22, 2022. Retrieved June 22, 2023.
  34. ^ "About Importing and Exporting DXF Files". AutoCAD User's Guide. Autodesk. Retrieved January 14, 2022.
  35. ^ "Questions and Answers" (PDF). Images.autodesk.com. Archived (PDF) from the original on 2022-10-09. Retrieved 2016-03-30.
  36. ^ "Goodbye AutoCAD 360, Hello AutoCAD Mobile!". benchmarq. 20 February 2017.
  37. ^ a b Autodesk. "AutoCAD WS". iTunes Preview. Apple. Retrieved 30 September 2011.
  38. ^ Ozler, Levent (September 2010). "AutoCAD for Mac and AutoCAD WS application for iPad and iPhone". Dexigner. Retrieved 30 September 2011.
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  40. ^ a b c Ozler, Levent (13 April 2011). "AutoCAD WS for Android". Dexigner. Retrieved 30 September 2011.
  41. ^ Thomson, Iain. "Autodesk Shifts Design Apps to the Cloud". The A Register. Retrieved 30 September 2011.
  42. ^ "AutoCAD WS: Moving Forward". Augi Autodesk Users Group International, January 29th, 2013. Retrieved 26 April 2013.
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  45. ^ "Overview of Plotting". Retrieved 19 March 2016.
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