Datavideo's DAC-75T is designed to convert video signals from VGA, HDMI, SDI to HDMI or SDI. With touchscreen control, it's a great ally for venues, conference teams and AV rental teams that need to be ready for whatever the presenter needs to project. DAC-75T makes childplay of connecting your source to a screen or projector. The DAC-75T does upscaling, downscaling and standards conversion for any HDMI, VGA or SDI device to any HDMI or SDI screen or projector. RCA inputs allow audio to be embedded to the output of the video signal for recording purposes.
We have moved on since the 80s and 90s and left terms such as Betamax and S-Video languishing in museums (http://www.obsoletemedia.org/). Underscan and Overscan still crop up, however, in monitor specs. These terms have their roots in old analogue television, when using CRTs or Cathode Ray Tube monitors and TV sets. Due to the way the electron gun worked inside the old TV tube part of the outside edge of the image was intentionally cropped as it was not the same image quality.