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220-801 · Question #81

Which of the following adapters causes the LEAST amount of signal loss?

The correct answer is C. DVI to HDMI. DVI (Digital Visual Interface) and HDMI both carry digital video signals. Converting between two digital formats requires only a passive rewiring of pins with no analog-to-digital (ADC) or digital-to-analog (DAC) conversion, so signal quality is preserved. Any adapter involving…

Hardware

Question

Which of the following adapters causes the LEAST amount of signal loss?

Options

  • AVGA to DVI
  • BHDMI to VGA
  • CDVI to HDMI
  • DS-video to RCA

How the community answered

(38 responses)
  • A
    8% (3)
  • B
    11% (4)
  • C
    76% (29)
  • D
    5% (2)

Explanation

DVI (Digital Visual Interface) and HDMI both carry digital video signals. Converting between two digital formats requires only a passive rewiring of pins with no analog-to-digital (ADC) or digital-to-analog (DAC) conversion, so signal quality is preserved. Any adapter involving VGA (an analog interface) - such as VGA-to-DVI or HDMI-to-VGA - requires ADC or DAC conversion, which inherently introduces quality loss. S-Video to RCA is analog-to-analog but still degrades the signal due to impedance and format differences. DVI-to-HDMI is therefore the lossless (or near-lossless) option.

Topics

#display adapters#signal conversion#DVI to HDMI#analog vs digital

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