NTSC (National Television Systems Committee)
NTSC (National Television Systems Committee) is the standard for analog television transmission in the United States and many other counties worldwide.
NTSC was developed in 1953 by the National Television System Committee. Alternatives to NTSC were developed later, including PAL and SECAM.
NTSC provides 482 lines of vertical resolution and 16 million colors. NTSC transmits 525 lines, but some lines are used for sync, vertical retrace, and closed captioning.
NTSC delivers 29.97 frames per second. NTSC does this by delivering 59.94 interlaced half-frames per second.
Interlacing is a technique of alternating the transmission of even lines and odd lines to raise the effective resolution without increasing bandwidth utilization.
NTSC has an aspect ratio of 4:3.
In addition to the United States, NTSC is also used in American Samoa, Antigua and Barbuda, Aruba, Bahamas, Barbados, Belize, Bermuda, Bolivia, British Virgin Islands, Canada, Cayman Islands, Chile, Colombia, Costa Rica, Cuba, Diego Garcia, Dominica, Dominican Republic, Ecuador, El Salvador, Fiji, Grenada, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Leeward Islands, Marshall Islands, Mexico, Micronesia, Midway Atoll, Montserrat, Myanmar, Netherlands Antilles, Nicaragua, Northern Mariana Islands, Palau, Panama, Peru, Philippines, Samoa, South Korea, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, Taiwan, Trinidad and Tobago, U.S. Virgin Islands, and Venezuela.
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