The first highway of information is 

The telegraph is considered to be the first highway of information.

Key Points

• The telegraph was invented in the early 19th century, and it was the first way to transmit information over long distances in a matter of seconds.
• The telegraph allowed people to communicate with each other quickly and easily, and it revolutionized the way that information was disseminated.
• Before the telegraph, information was slow to travel.
• It could take weeks or even months for news to travel from one place to another.
• The telegraph made it possible for news to travel instantly, and it had a profound impact on the way that people thought about the world.
• The telegraph was also used to transmit commercial and financial information, and it helped to facilitate the growth of the global economy.
• The telegraph was a truly revolutionary invention, and it paved the way for the development of the modern information highway.

Therefore, the answer is Telegraph.