VGA FULL FORM
Full Form of VGA : Video Graphics Array
What is the full form of VGA?
No:1. The full form of VGA is a Video Graphics Array.
No:2. IBM initially established the VGA standard.
No:3. It uses analogue signals and offers a 640-480 resolution display with 16 colours at a time and a 60 Hz refresh rate.
No:4. From the 262, 144 colour series, it shows a maximum of 256 colours at a time.
No:5. To transform analogue RCB (red, green and blue) signals, it comprises a 6-Bit Digital to Analog transformer.
No:6. VGA was launched for its PS/2 line of PCs by IBM in 1987.
No:7. The 1st to provide the ability to view up to 16 colours at a screen resolution of 640 × 480 pixels was the original VGA graphics card.
No:8. VGA was able to show up to 256 colours at a lower resolution of 320 × 200 pixels, making it possible to render lower case.
No:9. Because of this, it was included in the original OS loading mode.
No:10. For instance, the Windows OS of Microsoft has loaded its iconic opening screen in VGA colour.
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Features of VGA
No:1. VGA provides a resolution of 640 ×480 pixels with sixteen colours at a time.
No:2. VGA supports both the graphics modes of All Points Addressable and the alphanumeric text mode.
No:3. From the 262, 144 colour array, VGA reveals a maximum of 256 colours at a time.
No:4. The VGA has a 60 Hz refresh rate.
No:5. VGA uses 256k of memory, but it does not have any extra memory.
Benefits
No:1. Each and every supplier supports all computers.
No:2. There is only one standard for VGA and no variants. If the device has a VGA-out, it can attach to the VGA-in appropriately.
No:3. VGA signals are analogue signals, meaning that more precision than digital signals would be usable.
No:4. VGA made it much easier for small letter characters to be rendered and the transparency improved.
No:5. VGA was an upgrade that generated a high resolution of 320-200 pixels over previous predecessors, such as the Enhanced Graphic Adapter.
Limitations of VGA
No:1. It is old technology with a limited amount of resolution assisted by it.
No:2.VGA’s colour capability is smaller than some of its successors.
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