CMI Day 9

CMI Day 9 - Video Cards and Monitors Objectives Understand...

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Video Cards and Monitors Objectives 0. Understand current video card and monitor terminology. 1. Recognize the common components of video cards and know their functions. 2. Distinguish between the three types of graphics processors and their uses. 3. Convey how two common application program interfaces, Microsoft DirectX and OpenGL, are used to enhance graphics processing in the computer. 4. Differentiate between consumer and professional video cards and their specifications. 5. Select a monitor that will suit your needs by evaluating the characteristics and technologies of tube and flat-panel displays. Pixels 0. Picture Element 0. Smallest unit of display. 1. Composed of red, green and blue phosphor dots. 2. 256 levels of intensity for each dot Resolution 0. This is the area given in pixels of a display or monitor Video Cards 1. The Early Days 3. Monochrome Adapters 2. IBM created the first color graphics cards Video Cards 3. First analog color output 4. VGA – 256 colors, 720 x 400 4. The VGA standard 5. Digital analog output Video Cards Today 1. Enhanced analog color output 6. SVGA – 16.8 million colors, 1280 x 1024 7. UXGA – 16.8 million colors, 1600 x 1200
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Video Card Components Graphics Processors 2. Frame buffer 0. Obsolete Graphics Processors 5. Graphics Accelerators 8. Very popular in consumer graphics cards Graphics Coprocessors 6. Most often found in professional graphics cards GPU Specification 7. Data Path 9. 256 to 512 bits 8. Clock rate – the speed of the GPU Memory Specs 9. Memory – DDR-RAM = most common type of memory 10. 128MB minimum recommended Memory Specs 10.True Color Card 11. 3 to 4 Bytes of info per pixel 11.CLUT 12. 1 Byte per pixel referenced to a color look up table (Palette) Graphics BIOS 12.Runs video card 13.Activated first in system POST 13. Allows user to monitor system startup RAMDAC
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3. DAC takes data directly from RAM
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This note was uploaded on 04/08/2008 for the course SP 0710 taught by Professor Dino during the Spring '08 term at Full Sail.

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CMI Day 9 - Video Cards and Monitors Objectives Understand...

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