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Thứ Bảy, 31 tháng 8, 2013

Introduction To Computer Graphic Display Systems

By Gloria Mason


Computer graphics are brilliant systems in the world of computing. They can be utilized in a wide variety of areas like displaying results of engineering and scientific computations or visualizations, production of TV ads and feature films, to analyze and simulate real problems of the world together with computer aided design. Other uses include the increase of the communication bandwidth between humans and machines through graphical user interfaces. The art of creating images with a computer has countless applications thus facilitating the importance of learning the basics of computer graphic display systems.

The advent of cathode ray tubes brought about major changes in the computing world. No longer do people have to depend on time consuming and awkward punching cards or cryptic commands. Computer graphics are application oriented. The earliest application was the Sketchpad by Ivan Sutherland that enables a user to make drawings on a screen. Although it may seem trivial, in the graphical field it is a major breakthrough and has proven to all that computers can be utilized interactively to produce graphic output on a cathode ray tube display.

Later on, the arrival of paint systems made the essential communication between humans and computers somewhat more pictorial. Others are Word Processing, desktop publishing, business graphics like analytical charts as well as other displays of information, that present the message in a forceful and emphatic manner.

Computer aided designed followed suit, which allowed easy and speedy design of mechanical systems, buildings, electronic circuit boards or floor plans, and simulation of real world problems in a way that provides major savings and a safe learning environment. Computer games also arrived, significantly producing to the popularity of computer graphic systems.

From 3D rendering to image warping, the functionalities of modern GCDs is appealing to consumers eyes as a result of their various applications. Top-end controllers give products dynamic graphics that define their style and value, hence impressing potential consumers. Modest controllers on their part present information in a simple and clear manner, providing users with what they require will no fuss.

Whether totally dazzling or merely functional, good designs are rewarded by a graphical system in quite remarkable ways, hence they deserve keen attention. When designing good graphics, the first step is to choose a GCD that can support the applications goals having the right functionality at an affordable price point. The performance/price of GCD can be categorized into three groups: basic level, high level and mid level.

There are several factors that influence the architecture of implanted designs, one of them being cost pressure. A textbook example of a cost-sensitive application area is the automotive industry, in which one of the major priorities is minimization of the bill of materials. In mid and basic level applications, designers can address this need by using system-on-a-chip controllers as a workable single-chips solution. These GCDs can communicate with one another via the CAN, and can induce shutdown power modes to save battery power.

However, as a result of inherent system bottlenecks and limitations in internal capacity of VRAM, the level of graphic display systems functionality and their maximum display size is limited.




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