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There are several different editions of AutoCAD. The latest version is AutoCAD 2020 (released in 2017). AutoCAD’s core set of features is called the AutoCAD Product Line.

AutoCAD was originally developed by H-E-B in 1982, and was acquired by Autodesk (then AutoDesk) in 1996. The product was initially developed to make it easier for engineers to design maintenance, fabrication, and repair operations at a number of H-E-B locations. AutoCAD includes an AutoCAD Network module, which enables users to share drawings over the network.

Compatible file formats

AutoCAD allows users to save files in different file formats. There are a number of file formats that are commonly used by AutoCAD users. These include AI, DWG, DXF, and PDF. The purpose of each format is to store drawings in a particular format. AI is the standard format of AutoCAD. The other file formats store other types of files, such as DXF, which stores drawings made in some other CAD applications.

Differences in file formats

The main difference between an AI file and a DXF file is that an AI file stores all the data and graphical elements in the same file. DXF files store the data and graphical elements as separate files. A DXF file can contain objects and lines, in addition to paths and circles. When an AI file is opened in AutoCAD, it converts the data to a DXF format and applies any changes in the drawing to the new file.

In addition, DXF and AI files have different line and object settings. DXF files have a default width of 0.02 in (0.5 mm), and AI files have a default width of 0.005 in (0.13 mm).

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Compatible file formats

Related courses:

To get started with AutoCAD, first choose the license you want to purchase.

If you purchase the Professional version, you will be able to customize the setup. The Free version does not allow customization of the setup, but does have many useful features

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Command-line interface, which can be used to automate AutoCAD using scripts. See Script reference for general information on using the command-line interface.

Autodesk provides a free version of AutoCAD known as AutoCAD Lite, which includes all the features of AutoCAD but no user interface except for basic menus. This allows users to test the user interface or plug-ins.



AutoCAD has been around since 1982, making it a pioneer in CAD. It is widely used by AutoCAD Specialist, Architecture, civil engineering, mechanical engineering, construction and industrial design communities.

With its range of tools and design software it can perform structural and civil engineering design, architectural design, landscape design, electrical engineering and electro-mechanical engineering, mechanical engineering, building information modeling, construction planning, interior design, interior finishes, architectural design, architectural technology, construction management, architectural graphics, 3D printing and inspection, engineering graphics, product design, industrial design, interior design and others.

In the United States, Autodesk is the largest AutoCAD distributor. In other countries Autodesk also distributes AutoCAD.

Design philosophy

In AutoCAD, a block, which represents a material or a design element, is a template of one or more dimensions (length, width, and height). Blocks can be combined to form structures. Blocks are stored as entities in a database, each block can have its own properties. When a block is created, properties of the block are saved into a file and the entity is created in a database. The standard format for blocks is the DXF (Drawing Exchange Format) file. When a DXF file is read, it is automatically deserialized into an entity, which stores properties and geometry of the block in a database.

The most frequently used commands are those that are built into AutoCAD, such as command palette, Boolean commands, and the menu. There are commands available to users, such as the commands described in the Manage Commands dialog box. In the AutoCAD system, commands are grouped as palettes or libraries. The palette is a large collection of command that all functions available for the command user. Users can choose to see the available commands, or they can open and edit a palette. To edit the palette is easy because the commands are listed in different views and are organized. Another type of library is the library. The library has the same commands but

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Autodesk Autocad Premium requires at least Windows XP Professional. A graphic card which supports OpenGL 2.0 is mandatory.

What’s New In?

Create small, precise holes, using the Insert Circle command. Add precision to your drawing with the Insert Circle dialog box, a feature designed especially for geometric drawing (video: 3:45 min.).

Quickly insert a drawing into a drawing, without repeatedly clicking the “Insert” button, which may take up several seconds. (video: 1:42 min.)

Leverage the benefits of a digital workplace. Open and close files directly from the desktop, and use traditional file formats as well as the latest drawing formats.

New navigation capabilities and user interface improvements:

Easily navigate to your drawing files, and open and save drawings from a single, consistent location. (video: 1:27 min.)

Use the New Navigator window to open drawings and navigate between them, as well as perform drawing-related tasks, such as open, save, and print a drawing. Use the navigation pane to view files, view and print drawings, and manage users. (video: 1:53 min.)

Close a drawing document and move to the next one without closing the first file. Select files in the list of open documents and use the menu option to close a document. (video: 1:14 min.)

Use the Send To command to quickly send a drawing to a remote Windows machine, or a macOS server, so that your colleagues can view it or edit it. (video: 1:40 min.)

Use the Print command to print drawings from your office. (video: 1:29 min.)

Relax and catch up on work without distractions. Bring up or close the drawing application when you need to focus on work, and close it when you’re done.

Create geometrically precise drawings with the Insert Circle command

Geometric accuracy and precision are top design priorities in many fields. These days, you can easily create drawings that precisely align with dimensions—for example, the sides of buildings or with other geometry.

But if you’re building up a design with multiple objects, there’s no easy way to add a “circle” precisely where you need it, one by one. The Insert Circle command can add an object’s centerpoint to your drawing—all without moving to a separate menu or command.

Using the Insert Circle command

Using the Insert Circle command

To use the Insert Circle command

System Requirements For AutoCAD:

* Linux (tested with KDE 4.8.5, 4.9.4)
* ATI Catalyst 13.2 (tested with Radeon 5700HD, Radeon HD6290)
* NVIDIA GeForce 8400 GS, ATI X550, AMD Radeon HD4800 XT (tested with Radeon 5700HD)
* Windows XP SP2, Windows 7, Windows 8
Install Notes:
* Settings menu is missing on Windows platform
* French and Spanish localizations added
* Some features (like “Invert Compass

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