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AutoCAD is available as a free trial version, as well as a number of paid upgrades and add-ons. In its July 2011 annual report, Autodesk said that AutoCAD was used by almost 10 million active users worldwide. There is also a free tutorial-type version of AutoCAD.
AutoCAD is used primarily to design mechanical systems, but it is also useful for architectural and other types of design. Autodesk describes AutoCAD as the "design industry standard," and says the product is used by "engineers, designers, architects, contractors, drafters, quantity surveyors, manufacturers, professionals, and individuals."
History [ edit ]
The AutoCAD drafting program was originally developed by the Forney Engineering Company for the HP 36c. Forney sold its engineering department to Autodesk in 1980, which subsequently sold AutoCAD to Autodesk in 1982.[2]
To learn more about the history of AutoCAD, read this guide: AutoCAD 101: History of AutoCAD.
The 36c was a high-end computer with an internal graphic controller, so a separate hardware graphics terminal was needed to run AutoCAD. A month after its introduction, Autodesk began shipping its next-generation 32c, which was a microcomputer with an internal graphics controller. With the introduction of the 32c, Autodesk was able to offer the 32c with a plug-in style keyboard for the first time. The design of the 32c made it possible for it to run AutoCAD software from the floppy disk, which was new at that time.
Autodesk was able to grow AutoCAD as a desktop app from these humble beginnings, since this was the only available CAD application at the time that could run directly from a floppy disk. The release of AutoCAD for the Apple Macintosh made it possible for a single, integrated design workstation to be owned by a designer for the first time.
Versions [ edit ]
The first version of AutoCAD was called AutoCAD 1.0 and was initially released in December 1982. The next version was AutoCAD 2.0 released in June 1983 and AutoCAD 1.1 in April 1984. Version 1.1 was a major upgrade that introduced drawing refinement, new symbols, proportional editing, and redesigned options and command bars. Version 2.0 introduced Autodesk's naming convention for new
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An AutoCAD project is a collection of drawings in the form of a project. Each AutoCAD project is a collection of drawings called a drawing set. A drawing set is represented by a DWG file.
Operation
AutoCAD starts up when a drawing is opened.  The drawing is then displayed in the main window. The user can see the main menu and the drawing tools, as well as information such as dimensions, data values, and the current drawing unit. The user also sees the drawing's title bar, which contains the name of the drawing, the drawing's context (such as type of drawing, technical object, or project), and the last-modified date and time. The user can adjust some drawing settings, such as the grid and magnification. Other settings such as color are contained in the Preferences dialog.
File history
An object in the drawing (such as an entity) can be linked to one or more drawings. When the user opens a drawing, AutoCAD displays a list of drawings to which the object is linked. The list is sorted in order of date. The user can select a drawing by clicking on its listing. All links to the selected drawing are closed and the drawing is displayed in the main drawing window. The list of drawings can also be sorted by name or date.
Overview
For each drawing, there is a column of information at the top of the main drawing window. The information in this column changes as the user makes changes to the drawing. For example, the properties of a line or rectangle are listed in the Properties column. The Properties column shows the type of the property (measured, selected, selected as edited, etc.), its units, and the date it was last changed. The Units column displays the units of the property; if the drawing is using units other than inches, the user can change to inches. The other columns of information include the name of the user who created the drawing, the drawing context, the name of the user who last changed the drawing, the date and time the drawing was last modified, and the date and time the drawing was created.
A button at the bottom of the column called "Edit" takes the user to the drawing's Properties window, where the user can make changes to the drawing. Another button called "Insert" takes the user to the drawing's Insert panel. The user can make changes such as changing the type of a line or text or adding an object. At the bottom of the Insert panel is
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