The basis for our modern system of communication began when Samuel Mores invented the telegraph, Alexander Graham Bell invented the telephone, and Guglielmo Marconi invented the telegraph without wires.
The basis for our modern system of communication began when Samuel Mores invented the telegraph, Alexander Graham Bell invented the telephone, and Guglielmo Marconi invented the telegraph without wires.
现代通信系统的起点是从萨缪尔·摩尔斯发明电报、亚历山大·格雷汉姆·贝尔发明电话、以及古格里莫·马可尼发明无线电报开始的。