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A general overview of the AutoCAD system architecture

The web or mobile version of AutoCAD

Standard configuration


Autodesk AutoCAD & LT User Manual

Table of Contents


In 2010, AutoCAD released its newest version, AutoCAD 2010. The latest version introduced the new concept of running AutoCAD in the cloud, under the Microsoft Windows platform, to provide a more robust desktop application and to give greater freedom to users. The software was made available to AutoCAD owners in multiple geographic regions, with the software available in 32-bit and 64-bit forms.

AutoCAD is available as both a desktop application, i.e., a program that runs on a personal computer, and a cloud-based application, i.e., software that runs on a remote server.

A desktop version of AutoCAD is offered as either an AutoCAD LT or an AutoCAD or as an upgraded version known as AutoCAD R14 or AutoCAD R15, depending on the version of the computer’s operating system (OS) the user is using.

An AutoCAD LT or AutoCAD R14 or AutoCAD R15 software program for Windows 10 Professional, Home or Education Edition is available for download for free from the Microsoft website (

A cloud-based version of AutoCAD is available for Microsoft Windows, Mac OS, and Linux operating systems.

Figure 1: The AutoCAD 2010 desktop application

Autodesk’s AutoCAD software development and graphics engine code are proprietary and are protected by copyright.

Design Philosophy

Some principles of the AutoCAD design philosophy include:

Autodesk believes that high-quality design can be accomplished by using computers with software tools.

Autodesk’s design philosophy stresses the use of standards rather than proprietary technology to streamline design efforts and minimize the amount of effort designers need to do in order to use tools effectively. The application is designed with standard commands that are easy to learn and use.

The user can customize and configure the software to suit his or her needs.

Autodesk believes that technology can be used to help the design process, but the design itself still should be the designer’s responsibility. Autodesk believes that using tools to make a complicated job simpler is more likely to

AutoCAD 19.1 PC/Windows

Communication protocols
AutoCAD offers three proprietary communication protocols for use with Autodesk’s networked products: the Server – Client (SSI) model for peer-to-peer networking and document sharing (with Autodesk’s NetEncoders), and the Direct Access Model (DAM) for connecting directly to Autodesk’s multi-platform AEC software.

The Server – Client (SSI) model has historically been the default protocol in AutoCAD and other Autodesk software. This allows for a standard way of connecting between peers in a multi-user environment, and it also allows for workgroup sharing of CAD files. The Client – Server (CSI) model is a newer protocol developed in response to issues with the SSI protocol, such as unpredictable path delays and limited scalability. Client – Server (CSI) was designed to improve performance for Autodesk’s users, especially in large-scale environments and with the increased user count in such environments.

The third protocol, DAM, is intended for direct access to Autodesk’s AEC software. In contrast to other network file protocols, the DAM protocol does not involve any file transfer or networking. In addition, the DAM protocol, as with other Direct Access models, can be used to open, save and edit drawings directly on Autodesk’s AEC, BIM and construction management software.

NetEncoders are proprietary software designed for connecting to other Autodesk products, and thus, NetEncoders should not be used to connect to non-Autodesk applications.

NetEncoders were discontinued in 2011 and replaced by a new technology, WebConnect, designed for network communication between AutoCAD, other Autodesk applications and non-Autodesk products.

File formats

AutoCAD supports the exchange of various CAD file formats, including DWG, DWF, DGN, DXF, and PDF for electronic exchange of CAD designs. AutoCAD also provides the option of using an internal DWG format for native import and export of DWG files, which offers the highest level of compatibility with other DWG-supporting CAD applications.

AutoCAD X (AutoCAD Architecture Edition) supports the exchange of ADX files and can directly import many of the other file formats.


External links

AutoCAD X service page
AutoCAD help on Autodesk website

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Double-click the Autocad icon on your desktop. You can also double-click the shortcut on the Start menu or start Autocad.

Open Autocad.

Click File > New > Schedule.

Select Schedule by Month, Year, and Period.

Click the plus symbol to add a year, month, or period.

By adding days, you can generate schedules for whole years or months.

Select or enter the date.

Click the drop-down arrow beside the field and select the period you want to see.

Autocad lists all of the combinations for your date in the Period column.

When you start entering a new date, Autocad adds it to the list. You can see only the new date.

Select the type of schedule you want to create, and then click OK.

Autocad creates the schedule.

Click File > Close, or press Ctrl+X.

Note: You can also use the hotkeys Ctrl+S, or Ctr+X.

How it works
A period is a unit of time, and you can specify how long it is by using a specific number of days.

On the Main Menu, select File > New > Schedule.

On the New Schedule dialog box, click the Period drop-down arrow, and select a period.

On the Period drop-down, you can see all the available periods, such as a day, week, or month.

Note: A year is the length of time it takes for the Earth to spin around the sun.

On the Period drop-down, you can see all the available periods, such as a day, week, or month.

When you start entering a new date, Autocad adds it to the list. You can see only the new date.

Select the type of schedule you want to create, and then click OK.

Autocad creates the schedule.


Step 1

Open the InDesign document or a new document.

Step 2

Select the Annotation, Paragraph, or Bullets and Numbering tool.

On the Tools panel, click the tool to see its options.

On the Tool Options dialog box, click the Indents & Spacing tab, and enter a value for the Indent field.

Step 3

Choose a point style.

Step 4


What’s New in the AutoCAD?

You can now easily create markup, or comments, directly from imported drawings by using the new Markup Import and Markup Assist functions. New markers appear as easily as any other AutoCAD object. You can also now apply a marker on-the-fly to create one-click comments in your design.

Improved Layer and Dimension tool:

Bevel a 3D layer shape or dimension by rotating the object using the new 3D Rotate tool. The 3D Rotate tool automatically rotates the layer or dimension you click on to follow your current rotation (the active dimension or layer), so it’s always perfectly aligned when you change your orientation. (video: 1:40 min.)

It’s now possible to type numbers into dimension objects or layers. We’ve also improved the behavior of the Add Item to Dimension and Add Item to Layer tools so they now recognize and add decimal numbers, including values with a decimal point, when you select them.

Data Management enhancements:

A new custom Snap and Proximity tool enables you to quickly calculate and generate a variety of spatial relationships between your data. (video: 1:35 min.)

You can now move and copy CAD data from your local drive to network locations. You can also move CAD data to other computer systems (such as your cloud storage) or to network locations.

The new, compact Data Management tool is especially useful when you work with large CAD drawings. Its specialized filters provide instant access to relevant, specific data within the drawing. You can save a selection to a file, export it to Excel, or copy it directly to the clipboard.

Creating models in an attached file folder is easier than ever. We’ve added a ribbon tab for easy access to the file folder. Simply right-click the tab and select Attach File Folder to switch between it and the main file folder view.

Multiple viewing enhancements:

Multiple views of a CAD model or drawing are easier to navigate and interact with.

The new Multiple View tools provide fast access to up to 15 simultaneously displayed views of a drawing. You can view a saved selection, or an entire drawing, in multiple views. These views can be grouped together and the group can be expanded and collapsed with a single click. (video: 1:30 min.)

You can now switch the grid pattern and the view

System Requirements For AutoCAD:

1080p 2560×1440 Screenshot:
1080p 3840×2160 Screenshot:
General (Controls):
No Preset – Default (Deuteronomy)
Monitors (in game):
1080p: HDR OFF – Defog ON – Parallax OFF – Motion Blur OFF – Environment Presets OFF – Brightness (in game): Low – High – Normal – Super – Fast – S.A.R.S. OFF – S.A.R.S. Stabil