信息與通信工程專業(yè)介紹(英文版)(已修改)
2025-01-08 22:38 本頁面
【正文】 Brief Introduction to Information and Communication Engineering Brief Introduction to Information and Communication Engineering ? Among all of the essentials for human existence, the need to interact with others ranks just below our need to sustain life. Communication is almost as important to us as our reliance on air, water, food, and shelter. ? The methods that we use to share ideas and information are constantly changing and evolving. Whereas the human work was once limited to facetoface conversations, media breakthroughs continue to extend the reach of our munications. From the printing press to mobile phone, each new development has improved and enhanced our munication. The development of Communication （ 1） In ancient times ， information could be transferred through light or sound。 光通信：中國 烽火臺、希臘 — 火炬的位置表示字母符號 聲通信：中國 — 擊鼓鳴金 （ 2） Beginning and turning point： 1837Morsetelegram； 1876Belltelephone； 1895Marconiradio The development of Communication ? development of transmission channel multicore cable— Coaxial Cable— optical fiber 多芯電纜 — 同軸電纜 — 光纖 ? development of Communication ponents vacuum tube— transistor— integrate circuit— large scale integrated circuit 真空管 — 晶體管 — 集成電路 — 大規(guī)模集成電路 ? development of transmission method telegram— voice — Much carrier modulation— pulse code modulation 電報 聲音 — 多載波調(diào)幅 — pcm ? development of range of message voice — text — graph， image 聲音 — 文字 — 圖形、圖像 The development of Communication ? As with every advance in munication technology, the creation and interconnection of robust data works is having a profound effect. ? Early data works were limited to exchanging characterbased information between connected puter systems. Current works have evolved to carry voice, video streams, text, and graphics between many different types of devices. Previously
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