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Essay / Research Paper Abstract
This 4 page paper traces the development of computer aided design (CAD) programs from their easy days in the 1960’s to the current day where a single program may do the work of between of 4 or 5 draftsmen. The paper starts in the 1960’s and flows the developments such as Sutherlands’ SKETCHPAD and the contribution of Hanratty and continues through to the present day. The bibliography cites 3 sources.
Page Count:
4 pages (~225 words per page)
File: TS14_TECADdev.rtf
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Unformatted sample text from the term paper:
However, only half a century ago all drafting took place by hand and over time the take up of CAD systems has paralleled the development, proliferation and increased processing power
of the computer itself. Today drafting is common undertaken by computers. The history of the CAD program development starts in the 1960s (Eiteljorg, 1989). The initial programs were basic
but still very useful. The capabilities of the programs were to draw sets of standardised shapes, such as circles, arcs and lines and allowed the users to edit their work
in a similar way that a typist could edit their work using a word processor (Eiteljorg, 1989). After creating the basic shapes, which could be quite complex, the CAD programs
automated the drafting process. The equipment used to makes the drawings were large specialised machines, the drawing were on par with those created by skilled draftsman and the time taken
was less (Eiteljorg, 1989). This is the perceived and common history of the CAD systems. However the history is more complex, the development of the CAD systems took
place along two paths, one was the development of architectural use, but arguably the developments that drove forward the most innovations were the CAD programs that were designed with engineering
application, such as the automotive and aeronautical industries where there was the desire to develop programs that would help with drafting and the calculations needed for the design of 3D
objects (CADAZZ, 2004). Many of these developments also took place in the 1960s, but the development was highly guarded and seen as a commercial secret, as a result the work
undertaken on these programs was not reported and work published regarding these development only too place many years later. Most development and innovations will have foundation on earlier work,
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