Discussion
Which of the following devices do you recommend most to use if someone wishes to connect a laptop to a classroom smartboard for high-resolution screencast ?
Answer: D
The best choice is HDMI.
HDMI (High-Definition Multimedia Interface) carries uncompressed high-resolution digital video and audio over a single cable, which suits casting a laptop's screen to a smartboard or projector in high resolution.
VGA is an older analogue video connection with lower quality and no audio. PS/2 is an old port for keyboards and mice, and a standard USB connection is used mainly for data and the smartboard's touch input rather than for high-resolution video.
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