Computer Achitecture and org - Video Controllers , Study notes of Computer Architecture and Organization

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Video ControllersVideo Controllers

A Video Display Controller or VDC is an integrated circuits which is the main component in a video signal generator, a device responsible for the production of a TV video signals in a computing or game system. Some VDCs also generate a sound signal , but in that case it's not their main function.

The VDC is always the main component of the video signal generator logic, but sometimes there are also other supporting chips used, such as 1.RAM, 2.ROM, 3.Perhaps some discrete logic such as shift registers were necessary to build a complete system

Video Display ControllersVideo Display Controllers

vs. Video Display vs. Video Display

Processors Processors

Difference b/w VDC and the more modern Video display Processor( VDP ) is not that the VDCs could not generate graphics, but they did not have the special hardware accelerators to create 2D and 3D images. VDCs often had special hardware for the creation of "sprites", a function that in more modern VDP chips is done with the "Bit Blitter" using the "Bit blit" function.

3. Video interface controllers Eg:-The MC6847 is a video display generator (VDG) first introduced by Motorola and used in the TRS-80 Color Computers etc 4. Video coprocessors Eg:-The Yamaha V9958 is the Video Display Processor (VDP) mainly used in the MSX 2+ and

9-PIN VIVO FOR S-VIDEO (TV-9-PIN VIVO FOR S-VIDEO (TV- OUT), DVI FOR HDTV OUT), DVI FOR HDTV (^) ANDAND DE-15 FOR VGA OUTPUTS. DE-15 FOR VGA OUTPUTS. A connector that provides two DVI outputs on a single connector. Some commonly used ports for output