Read the text and answer the following questions with NO MORE THAN THREE WORDS AND/OR NUMBERS.Types of CAD SoftwareCAD or Computer Aided Design software was introduced in the late 1960's to expedite engineering drawing process. There are various flavors of CAD available today and there are different methods of classifying them. In this text, we divide CAD software into two main types:2 Dimensional CAD (2D CAD)2D CAD is the pioneer of CAD software, and was developed in the early 70s. At that time, major automobile, aerospace and other engineering companies developed in-house tools to automate repetitive drafting requirements. 2D CAD relies on basic geometric shapes like lines, rectangles, circles, etc. to produce flat drawings. These types of softwares have been first developed way back in 1970’s.3 Dimensional CAD (3D CAD)3D CAD is a step up from the 2D CAD software of yesteryears. As the processing power of computers increased and the graphic display capabilities improved, 3D CAD has become an increasingly popular design tool. 3D CAD allows creation of 3D images that are realistic. These images are called 3D models as they can be viewed and rotated in any direction – X, Y or Z. You can also display views from a 3D model, such as isometrics or perspectives, from any angle using 3D CAD. 3D CAD tools were introduced in 1980’s by a partnership between IBM-Dassults. 3D CAD quickly became popular because of enhanced visual capability.The rapid advancement of 3D software today has helped quick turnaround in product design, giving birth to the concept for product lifecycle management (PLM). A few of today’s leading 3D CAD software includes SolidEdge and SolidWorks. Of course, with the vast array of tools, professional training is needed to master these tools.When was CAD first used in engineering drawing process?

What does computer-aided design (CAD) software do in the 3D printing process?*Convert digital blueprintsGenerate digital hologramsEnhance image resolutionCompress data files

Task 2: Read the text, and then answer the questions with NO MORE THAN THREE WORDS.ADVANTAGES AND DISADVANTAGES OF CADModeling with CAD systems offers a number of advantages over traditional drafting methods that use rulers, squares, and compasses. For example, designs can be altered without erasing and redrawing. CAD systems also offer "zoom" features similar to a camera lens, whereby a designer can enlarge certain elements of a model to facilitate inspection. Computer models are typically three dimensional and can be rotated on any axis, much as one could rotate an actual three dimensional model in one's hand, enabling the designer to gain a fuller sense of the object. CAD systems also model cutaway drawings, in which the internal shape of a part is revealed, and illustrate the spatial relationships among a system of parts.To understand CAD it is also useful to understand what CAD cannot do. CAD systems have no means of comprehending real-world concepts, such as the nature of the object being designed or the functions that object will serve. CAD systems function by their capacity to codify geometrical concepts. Thus the design process using CAD involves transferring a designer's idea into a formal geometrical model. Efforts to develop computer-based "artificial intelligence" have not yet succeeded in penetrating beyond the mechanical - represented by geometrical (rule-based) modeling.With CAD, what can be changed without erasing and redrawing?What features do CAD systems offer to make certain elements bigger? With CAD systems, what part of the model can be revealed? What concept can’t CAD systems comprehend? What model can CAD systems transfer from a designer’s idea?

Task 3: Read the text and answer the following questions with NO MORE THAN THREE WORDS AND/ OR A NUMBERBest CAD Software of 2019The best CAD software has lots of features, including custom tool palettes, 2D and 3D template models, and an easy-to-use interface.We have been evaluating CAD software since 2011. Most recently, we spent over 80 hours comparing 11 programs to find the best software for novice and intermediate users. After all of our research and testing, the AutoDesk AutoCAD 2019 came out as the best overall. This software costs much less than other high-level CAD programs while still giving you access to plenty of tools and learning resources. The support features are also impressive, making it ideal for beginners.AutoCAD 2019 – Best overallAutoDesk can be used to create many different types of designs, including 2D drawings and 3D models.The software also allows you to find weak areas in designs, making AutoDesk AutoCAD 2019 a great program for architects and engineers. It’s also a good option for students, since the company offers a decent academic discount.TurboCAD Deluxe 2018 – Best valueTurboCAD Deluxe 2018 is a basic and easy-to-use CAD program that is perfect for beginning to intermediate CAD users. While it doesn’t contain as many tools and functions as more advanced software, it is a powerful tool that can help you create 2D and 3D designs.SketchUp Pro 2018 – Easiest to useSketchUp Pro is a great CAD program for beginners since it offers a simple and customizable interface while giving you the tools you need to create 2D and 3D designs.What model became the best overall after all research and testing? What can AutoDesk software find in designs? What does the company offer students when buying AutoDesk? What level of CAD users can TurboCAD Deluxe 2018 best serve? According to the passage, which is the easiest-to-use CAD program?

Modeling with CAD systems offers a number of advantages over traditional drafting methods that use rulers, squares, and compasses. For example, designs can be altered without erasing and redrawing. CAD systems also offer "zoom" features similar to a camera lens, whereby a designer can enlarge certain elements of a model to facilitate inspection. Computer models are typically three dimensional and can be rotated on any axis, much as one could rotate an actual three dimensional model in one's hand, enabling the designer to gain a fuller sense of the object. CAD systems also model cutaway drawings, in which the internal shape of a part is revealed, and illustrate the spatial relationships among a system of parts.To understand CAD it is also useful to understand what CAD cannot do. CAD systems have no means of comprehending real-world concepts, such as the nature of the object being designed or the functions that object will serve. CAD systems function by their capacity to codify geometrical concepts. Thus the design process using CAD involves transferring a designer's idea into a formal geometrical model. Efforts to develop computer-based "artificial intelligence" have not yet succeeded in penetrating beyond the mechanical - represented by geometrical (rule-based) modeling.With CAD, what can be changed without erasing and redrawing?What features do CAD systems offer to make certain elements bigger? With CAD systems, what part of the model can be revealed? What concept can’t CAD systems comprehend? What model can CAD systems transfer from a designer’s idea?

29. What does CAD stands for in AutoCAD?a. Computer aided draftingb. Computer aided designc. Computer aided digitalizationd. Computer aided design & draft