Win OS & Hardware

1. Win OS & Hardware

2. Video Cards Tasked with presenting the 1’s & 0’s of the program code graphically to the user via a monitor.

3. Video Cards A Typical Video/Graphics Card

4. Video Cards Graphics cards convert digital information to analog information for display on the monitor

5. Video Cards All of the different things on the monitor screen are made up of individual dots. These dots are called pixels

6. Video Cards Pixels (Picture Element) A pixel represents the smallest piece of the screen that can be controlled individually. Each one can be set to a different color and intensity (brightness)

7. Video Cards Pixels (Picture Element) A small rectangular dot

8. Video Cards

9. Video Cards A graphics card is a circuit board with memory and a dedicated processor

10. Video Cards Graphics cards are known by many names, such as: Video cards Video boards Video display boards Graphics boards Graphics adapter cards Video adapter cards

11. Video Cards Every Graphics Card has three components:

12. Video Cards Memory The first thing that a graphics card needs is memory. The memory holds the color of each pixel

13. Video Cards Memory Common Memory Amounts 32 MB 64 MB 128 MB 256 MB 512 MB

14. Video Cards Memory

15. Video Cards Computer Interface The way a graphics card changes the graphics card's memory

16. Video Cards This is normally done by connecting the graphics card to the card bus on the motherboard. The computer can send signals through the bus to alter the memory.

17. Video Cards Accelerated Graphics Port (AGP) This port enables the video card to directly access system memory, thereby speeding the graphic display

18. Video Cards PCI-X Peripheral Component Interconnect Express x16 PCI Express slot (top) and x1 PCI Express slot

19. Video Cards PCI-Express vs AGP PCI Express graphics card connector vs. AGP 8x graphics card connector

20. Video Cards PCI vs PCI-Express vs AGP

21. Video Cards Video Interface Graphic cards generate the signals for the monitor, as well as synchronization signals for horizontal and vertical sync

22. Video Cards Refresh Rate How many times per second a whole screen image is drawn on the monitor

23. Video Cards Refresh Rates 60 Hz 70 Hz 72 Hz 75 Hz 85 Hz 90 Hz 100 Hz 120 Hz

24. Video Cards Color Depth How many colors a Video Card can display on a monitor

25. Video Cards Color Depth The more bit depth a color has, the more shades of that color can be displayed.

26. Video Cards Color Depth Each of the three primary colors (Red, Green and Blue or RGB) has a number of bits that describes its color "depth", or the number of shades of that particular color that can be displayed

27. Video Cards Color Depth 16 Color – 4 Bit = 24 256 Color – 8 Bit = 28 65,536 Color – 16 Bit = 216 16 Million Color – 24 Bit = 224 16 Million Color + Transparency 32 Bit = 232

28. Video Cards Color Depth

29. Video Cards Resolution This is the number of horizontal and vertical pixels the video board produces, expressed in terms of counts. If 640 x 480 pixel resolution, your screen is divided into 640 dots across and 480 dots down

30. Video Cards Common Resolutions 640x480 800x600 1024x768 1280x1024

31. Video Cards

32. Video Cards Video Card Chipset Manufacturers ATI Technologies Nvidia S3 Intel Matrox

33. Video Cards Questions?