Introduction to CAD Definition of CAD. Minimum system requirements and computer hardware. General and special CAD packages at present. Advantages of CAD.

1. EC 202 – COMPUTER
AIDED DESIGN (CAD)
Prepared by:
Puan Ruhiyah Nazihah binti Zahkai
Lecturer of Electrical Engineering Department
Polytechnic Sultan Idris Shah
Sg Lang, Sg Air Tawar, Selangor.

2. HISTORY
 The beginnings of CAD can be traced to year 1957, when Dr.
Patrick J. Hanratty developed PRONTO, the first commercial
numerical-control programming system.
 In 1960, Ivan Sutherland MIT's Lincoln Laboratory created
SKETCHPAD, which demonstrated the basic principles and
feasibility of computer technical drawing.
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3. DEFINATION OF CAD What is (CAD)???
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4.  CAD is Computer Aided Design
 Allow to accomplish design and drafting activities using a
computer
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5. COMPUTER AIDED DESIGN
 Is a tools that can be used for design and drafting activities
 To make ‘rough’ idea drawings, although it is more suited to
creating accurate finished drawings and renderings.
 Can be used to create a 2D and 3D computer model of the
product or system
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6. DESIGN
 Design - process of making an idea into a real product/system
(sketches, drawings, renderings, 2D models, 3D models, prototypes,
testing, analysis and documentation)
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7. COMPUTER SYSTEM
REQUIREMENTS FOR CAD
 Input Devices - A Cad system may use one or more combination
input devices. Keyboard, mouse, and scanner.
 Output Devices - Printer, plotter,
 Central Processing Unit - Minimum requirements (At least 800
MHz Pentium III, 512 mb of RAM)
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8. COMPUTER SYSTEM
REQUIREMENTS FOR CAD
 Display Device - Monitor with Super Video Graphic Arrays
(SGVA) -1024x768 resolution display.
 Storage Device - 750MB Hard disk, diskette, and compact disk.
 Latest version of windows - (Windows 7, Vista, XP). Not
applicable for Windows NT, 98 and Me
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9. DIFFERENTIATE CAD
WITH MANUAL /
CONVENTIONAL
DRAWING
Manual /Conventional Drawing CAD
Time X √
Increase Productivity,
Efficiency, Accuracy
X √
Scale √ X
Screen Drawing X √
Produce 2D / 3D X √
Uniformity of
reproduction (copy)
X √
Reduction in Storage
Space
X √
Security
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10. MANUAL DRAWING
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11. CAD DRAWING
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12. ADVANTAGES OF CAD ????????
 Disadvantages ????
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13. APPLICATION OF CAD
 CAD is an important industrial art extensively used in many
applications, including automotive, shipbuilding, and aerospace
industries, industrial and architectural design.
 CAD is also widely used to produce computer animation for
special effects in movies, advertising and technical manuals.
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2D drawing
3D drawing
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15. ~Sekian, Terima Kasih~
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