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History of autocad

Auto cad is a drafting program. Cad is acronym for computer aided design. We use autocad to

draw house plan,engine part and other object. It was developed and sold by Autodesk, Inc. First

released in December 1982, AutoCAD was one of the first CAD programs to run on personal computers,

notably the IBM PC. At that time, most other CAD programs ran on mainframe computers or mini-

computers which were connected to a graphics computer terminal for each user.

Early releases of AutoCAD used primitive entities ² lines, polylines, circles, arcs, and text ² to construct

more complex objects. Since the mid-1990s, AutoCAD has supported custom objects through its

C++ Application Programming Interface (API). Modern AutoCAD includes a full set of basic solid

modeling and 3D tools. With the release of AutoCAD 2007 came improved 3D modeling, which meant

better navigation when working in 3D. Moreover, it became easier to edit 3D models. The mental

ray engine was included in rendering, it was now possible to do quality renderings. AutoCAD 2010

introduced parametric functionality and mesh modeling.

 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, to create products such as AutoCAD Architecture,

 AutoCAD Electrical, AutoCAD Civil 3D, or third-party AutoCAD-based applications.

 AutoCAD and AutoCAD LT are available

for English, German, French, Italian, Spanish, Japanese, Korean, Chinese Simplified, Chinese

Traditional,Russian, Czech, Polish, Hungarian, Brazilian

Portuguese, Danish, Dutch, Swedish, Finnish, Norwegian, and Vietnamese. 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.

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List of toolbars

y  The tooltip

y  The 3d orbit toolbar

y  The cad standard toolbar

y  The dimension toolbar

y  The draw toolbar

y  The inquiry toolbar

y  The insert toolbar

y  The layouts toolbar

y  The modify toolbar

y  The modify2 toolbar

y  The object properties toolbar

y  The object snap toolbar

y  The ref edit toolbar

y  The ref erence toolbar

y  The render toolbar

y  The shade toolbar

y  The solids toolbar

y  The solid editing toolbar

y  The standard toolbar

y  The surfaces toolbar

y  The text toolbar

y  The ucs(universal coordinate system) toolbar

y  The ucs 2 toolbary  The view toolbar

y  The viewports toolbar

y  The zoom toolbar

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Draw

y  Line 

using command menu

1.  Choose Draw>Line 

2.  Click any point in the drawing area3.  Move the mouse pointer to a second point and click the mouse button

4.  To end line drawing,press spacebar.

Using command button

1.  Locate the Line command button on the draw toolbar

2.  If the Draw toolbar is closed, open it using the View>Toolbars>Draw command

3.  Click the Line command button

4.  Click the first point of the line 

5.  Click the second point of the line 

6.  Press the Enter key to end line drawing

Using text command

1.  Type 1 and press the spacebar

2.  Using the mouse,click on the first endponit for the line 

3.  Click the second endpoint of the line 

4.  Press spacebar to end line drawing

y  Angle 1.  Start with @sign, then the length of the line 

2.  The direction of the line start with< sign, and the angle value is in degree