AutoCAD 23.1 (2022)
AutoCAD LT (left) and AutoCAD (right) are the two main editions of the software.
Main article: History of Autodesk AutoCAD LT
AutoCAD LT, formerly known as AutoCAD, is a non-profit, Internet-based, Open-Source CAD program for creating 2D graphics designs. It is designed to run on personal computers (PCs) with little to no RAM. AutoCAD LT does not require a large amount of computing power, and is typically installed on a notebook PC.
The program was created by the German company Autodesk in November 1996, and is available for the Microsoft Windows operating system. In the early 1990s, Autodesk also created an older, more feature-rich version of AutoCAD, which the company later discontinued. AutoCAD LT supports most of the features of AutoCAD, as well as those of the 1992 non-profit version, AutoCAD II.
Users, many of whom are freelancers or home users, can download and use AutoCAD LT for free. However, if the user wishes to keep AutoCAD LT in their computer, he or she must pay a subscription fee, which varies according to the number of computers in use.
AutoCAD LT, which was previously available only for the Internet, was released as a desktop app in March 2017. This change in distribution method was made possible due to the efforts of the non-profit organization Internet Archive, who made AutoCAD LT available for download from their website. This version of the software can only be used on a single computer and has a limited file size, with the maximum file size being 25 GB.
The name of AutoCAD LT was changed to AutoCAD in 2017, but is still referred to as AutoCAD LT by many people.
Main article: History of Autodesk AutoCAD
AutoCAD is a desktop-applications-based, cross-platform CAD program for creating 2D and 3D graphics designs, which can also be viewed on a screen. AutoCAD was first released by Autodesk in December 1982. At the time, CAD programs were primarily used in industries, and AutoCAD was developed to allow designers and engineers to create 2D and 3D drawings and blueprints for factories, buildings, airports and other structures, which could later be printed in the form of a blueprint or a blueprint book.
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Add-ons, such as the Blocks Library, allow drawings to be composed of discrete items.
 There are thousands of third-party AutoCAD Torrent Download add-ons available in the Autodesk Exchange Applications.
According to AutoCAD 2011, the most popular add-ons are the following:
3D modeling
 3D solid modeling
 3D surfaces
 3D solids
 3D architecture
 3D design
 3D graphics
Optimizing software
 AutoCAD is installed with the On-Screen Debugger (OSDB) functionality that allows for debugging of code within AutoCAD.  The OSDB (now called the DesignCenter) can work either in desktop mode, which shows the user interface in an easel-like window on the computer desktop, or in a window within AutoCAD.
 GUI improvements 
The default Windows 7 installation of AutoCAD 2012 includes new features to make life easier for users.  For instance, a single "Windows Start" button now starts AutoCAD, and the Dock can display the new three-bar menu.  Previously, there were two shortcuts:  one for AutoCAD and one for AutoCAD LT.  AutoCAD now includes the older version of the program, AutoCAD LT, with which it shares many features.  This unification makes it easier to access all the features of either program.  Another example: when running multiple programs at once, previously the three bars (named "File", "Edit" and "View") were hidden under the desktop's "Start" button until the user double-clicked on it.  In AutoCAD 2012, these features can be found in the "Windows Start" button and on the dock bar.
Networking and connectivity 
Autodesk added the ability to connect to CAD applications remotely from AutoCAD using a CAD Networking Application programming interface (CNA). Previously, users had to run a separate client application in a separate window to perform the connection. This function has been enhanced in recent releases of AutoCAD.
Commands
The basic commands which one can use in AutoCAD are as follows:
All of the above commands can be used from the Graphical User Interface or from the keyboard. The default Keyboard Shortcuts can be customized to make the user interface easier to use.
Registers and Attribute Table
The Attribute Table (AT) is a component of AutoCAD that allows you to
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