480i
Definition:
The "480" part of 480i describes the number of vertical lines that make up a television or video signal. Most television or video signals are rated at 480, 720 or 1080. The more vertical lines that make up the picture, the crisper or higher definition the picture. The "i" following 480 indicates that the video display is constructed using an interlaced method.
The typical format for standard definition television programming is 480i.
Here's a word you may not know...
wi-fi hotspot
A wi-fi hotspot refers to a public wireless Internet connection. Wi-fi hotspots are common in coffee shops, hotels and other places people gather. If you have a laptop or mobile device with built in wireless connectivity, you should be able to easily connect to the Internet using a wi-fi hotspot. It should be noted that not all wi-fi hotspots are free and that some businesses charge a usage fee to use their wi-fi hotspot.
