Autodesk, AutoCAD’s original name, is a registered trademark of Autodesk, Inc. The name of the program has been changed to Autodesk AutoCAD to avoid confusion with other Autodesk products that are not CAD software.

AutoCAD is a desktop-based, Windows-based, and cross-platform (Mac and Linux) commercial CAD application. It is sold as either a perpetual license or an annual subscription. In addition, the product comes with a perpetual license to AutoCAD LT, which is a limited-function (and optionally cloud-based) CAD program.

AutoCAD was first introduced in 1982 as a desktop CAD application for microcomputers. Its first two versions were intended to work with a ZX81 and ZX Spectrum microcomputers, but a more complete version was released for the original IBM PC in 1983. The PC version was not compatible with the ZX81 version, and a few minor bug fixes were released in the first version. AutoCAD received its first major update for the PC in version 2.0.

The original AutoCAD was intended for use on mainframe computers. However, CAD was originally intended for use by drafters, who needed to draw by hand on the screen. Since the advent of CAD programs running on desktops, many drafters have been forced to learn to use the computer version instead of using their drawing board. The first major version, version 2.0, was released for the PC in 1985. A version for the Macintosh was added in the next version, AutoCAD 2.1, in 1986. This version supported the Macintosh with a version of the program’s user interface (UI) that looked much like the original ZX81 and ZX Spectrum versions.

The first version for microcomputers, AutoCAD LT, was introduced in 1987 for the ZX Spectrum (and later for the Amstrad CPC and Acorn Electron). This version ran as a stand-alone program without the AutoCAD main application. The interface was similar to that of the PC version, but was stripped down to accommodate the use of the ZX Spectrum’s limited ROM. The stand-alone version was fully compatible with the PC version, and a significant number of users purchased both versions.

AutoCAD 2.1 was the first version of AutoCAD for the PC to use an interface based on Windows. The first version of

AutoCAD Crack X64 [Latest 2022]

Solution Development

The Visual Studio-based development environment is built on the Microsoft.NET Framework. ObjectARX and AutoLISP are used as programming languages for software development.

AutoCAD Serial Key 2008, 2008 SP1, 2009 and AutoCAD LT use the ObjectARX class library, so programmers can develop software for AutoCAD by using these object-oriented classes. These classes can be used in software written using the other programming languages mentioned above.


AutoCAD, AutoCAD LT and AutoCAD Web—also known as AutoCAD Workbench or the ECMAScript edition—all support the use of the AutoLISP programming language, which is incorporated as part of the program. AutoLISP can be used in the AutoCAD application and as an application programming interface (API). AutoLISP programs can be created and executed using the AutoLISP editor and debugger, and an interactive AutoLISP interpreter that is part of the AutoCAD product family.

AutoCAD LT supports ObjectARX, the C++ Class Library.

AutoCAD LT supports a second API, the Visual LISP, in addition to AutoLISP, for use in software development. The Visual LISP program is based on the Visual Basic programming language. LISP programming is also possible in the AutoCAD application, although the language is not used by default, with Visual LISP generally being used for a custom user interface.

In addition to the APIs mentioned above, AutoCAD provides the Visual Studio-based development environment.

Autodesk Exchange Apps
Autodesk Exchange Apps are a way for AutoCAD users to extend AutoCAD software with advanced features. Exchange Apps are created using a combination of ObjectARX and AutoLISP software programming languages. The most common Exchange Apps are:
Architectural Desktop
CAD Manager
Civil 3D
Electrical Desktop
Electrical Designer
Electrical Manager
Electrical Productivity
Environmental Desktop
Home Inspector
Homeowner Designer
Industrial Desktop
HOK iWork
MultiFamily Designer
MultiFamily Productivity
Planning & Design Desktop
Planning & Design Productivity
Revit Desktop
Revit Drawings
Revit Structure


Open the Program named Autocad2016.
Go to tools >> help.
Click on Autocad 2016 Save.
Click on the Save button in the File Explorer.
Press the Generate Code button.
Click OK

This will generate a file named autocad2016.pk2.
Note: Before you use the code, you need to download Autocad 2016 from the following website:

After you download it, then the activation key will be ready for you.


O que significa “saber en la mitad”?

Antes de nada, la pregunta es esta: ¿”saber en la mitad” es algo común en la lengua coloquial? La pregunta se refiere a la frase siguiente:

Esta mañana me voy de vacaciones en la mitad de mi vida.

O mejor dicho, estoy seguro de que eso es sólo frase popular entre las personas muy vinculadas a la vida familiar o desconocidos de la vida social, sin que yo sepa por qué cierta gente siente la necesidad de decir eso.
El caso es que yo lo he oído decir por mi jefe el otro día, y esta es la pregunta: ¿tendría un sentido más o menos normal que un hombre conocido decir algo así?


Por mi pueblo, eso puede significar “saber bien” o “saber bien en algo”. Puede ser una expresión amplia e informal, como veremos más adelante. En una frase más específica, si es una persona conocida (“un conocido”) puede significar que “sabe bastante bien” y lo dice sólo por complacer.


Para mí es una expresión de seguridad o confianza, pero no es algo común.

What’s New In AutoCAD?

Industry feedback:

Include customized templates and references when you send drawings to your external partners. Connect directly with your partners, without copying files. Edit your templates in any way you like. (video: 1:55 min.)

Rapid multi-user commenting:

Create comments, questions, suggestions and other feedback on your drawings with other users of AutoCAD. You can collaborate with others and exchange drawings right within the drawing window. (video: 1:33 min.)

Freehand drawing with new NURBS:

Connect to the outside world using freehand drawing with NURBS (Non-Uniform Rational B-Spline). AutoCAD® or AutoCAD LT® users can use the new Freehand tool, while AutoCAD WS® users can continue to use the Sketch tool.

Extend the Toolbox for your mobile apps:

Bring AutoCAD-created drawings to your mobile devices. Deliver drawings from AutoCAD to a mobile device or convert them to PDF files that can be opened on any mobile device. (video: 1:14 min.)

Interactivity for Visio:

Use a flexible software product to interact with AutoCAD drawings and other design files. Visio® is now integrated with AutoCAD, AutoCAD LT and AutoCAD WS.

Improved text:

Edit, format, crop, rotate and create a variety of text styles. The text tool supports a wide range of characters, and text can be applied to both 2D and 3D objects.

Better 3D modeling:

Draw objects in 3D with multiple dimensions. Add shadows, reflection and color shading to 3D models. Drag objects into place with guided snap. (video: 1:40 min.)

Improved graphics:

Create, edit and apply effects to images and use shape categories. Create scalable graphics and use styles for 3D models. Bring your own artwork to life with AutoCAD artworks.

Gantt charts:

A host of time-based tools improve efficiency and project management. Automatically add and show Gantt charts. Create and display timelines that can be used to plan and track a project.

Workflow enhancements:

Streamline many tasks by using the AutoSave and AutoRecover features. Enable the feature to automatically save your drawing when you switch between different views. You can

System Requirements For AutoCAD:

* Minimum:
OS : Win 7 (64 bit), Win 8 (64 bit), Win 10 (64 bit)
: Win 7 (64 bit), Win 8 (64 bit), Win 10 (64 bit) Processor : Intel Core 2 Duo or higher
: Intel Core 2 Duo or higher RAM : 2 GB
: 2 GB Graphics: DirectX 11 compatible video card with 2 GB of video RAM
DirectX 11 compatible video card with 2 GB of video RAM Hard Drive Space : 1 GB
: 1 GB Additional Free Hard Drive Space: 21 MB