COMPUTER PERIPHERALS sunray @ PSIS

You will learn… Video Display Card Sound Card Computer Peripheral Modem/Fax Fault Symptom /Solution

Computer Video Necessary components for video output Monitors Video cards

How a CRT Monitor Works

Choosing the Right Monitor

Flat Panel Monitors

Additional cards mounted in a PC for enabling the display unit to display output . Attributes: Allows the PC to display nice-looking display Video Display Card

Video Display Card Block Diagram

3 Main Component Of Video Display Card

Video Cards Methods of data transfer RGB video port DVI port Composite video S-Video

Methods of Data Transfer SVGA DVI S-Video

There are 3 connectors on the end panel DVI connector This connector can be used to drive the digital input of a monitor. This is the same connector you'd use with a High Definition TV monitor. This connector can also be used with a standard computer monitor through an adapter. S-video OR composite video Input of an analog monitor/TV. Standard VGA Used to drive a standard computer monitor. Methods of Data Transfer

Transferring Data with an S-Video Cable

Video Cards Quality is rated according to how video subsystem affects overall system performance, video quality, power-saving features, and ease of use and installation Main features to look for Bus used (VESA, PCI, or AGP) Amount and type of video RAM it has or can support

Video Memory On Graphic Card

AGP Bus

Graphics Accelerators

Chronology Standard Display Card

MDA (Monochrome Display Adapter) Introduced in 1981. MDA not have any graphics mode. Single Monochrome text mode (monochrome text mode), can display 80  columns with 25  lines of high-resolution text. CGA Display screen using a video display mode CGA (Colour Graphics Adapter) is a color display screen that are cheaper and use obsolete technology.  This display screen, first introduced in 1981 is not as clear monochrome  display type. It can display text and graphics in four colors for each screen.  CGA display screens are widely used and popular in the mid 80's. EGA EGA (Enhanced Graphics Adapter), first introduced in 1984, and the screen is better than CGA screen.  Text and graphics on the screen of the EGA display more beautiful than the display of the CGA screen. EGA display screen capable of displaying up to 16 simultaneous colors in a screen.  Chronology Standard Display Card

VGA  Display mode VGA (Video Graphics Array) was introduced in 1987. Rendered much more beautiful than the previous screen technology. VGA display screen is operated with a resolution of 640 x 480 and can display up to 16 colors simultaneously in one screen.  Super VGA SVGA display screen, introduced in 1988, much faster in displaying a text or graphics than VGA screen. Presentation is more  beautiful with a higher resolution (800 x 600 to 1024 x 768 pixels). This screen is also capable of 256 colors down to more than 65 thousand colors. XGA Display screen with XGA display mode or Extended Graphics Array, first introduced in 1990. XGA display can display 256 up to 16.7 million colors. Presentation is much better and beautiful than the other screen color display with higher resolutions up to 1152 x 864 pixels. Chronology Standard Display Card

Concept Of 3D Video Card

Direct X

Troubleshooting Video Problems

Troubleshooting Video Problems (continued)

Fault Symptoms And Solution

Fault Symptoms And Solution