范文编号:TX172 范文字数:28293,页数:63 摘 要 数字电视作为一个新生事物,许多老百姓并不了解,那么究竟什么是数字电视呢? 关键词:
ABSTRACT Digital Television Ever since Philo T. Farnsworth put together the first television set in his Indiana garage in 1927, the basic technological principles for bringing electronic pictures into the home have remained the same. There have been only two major changes in the way TV sets work: the introduction of color in 1954, and the change from tubes to transistors in the 1970s. Keywords: 目 录 摘 要 I 绪 论 1 附 录 47
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