What methods have been used to transmit information from ancient times to the present?

Ancient methods of transmitting information: 1. Using migratory birds, especially pigeons and geese, as transmission tools.

⒉The way of making fillings, such as hiding in fish maw, cakes, steamed buns, etc.

⒊Use special sounds, such as bells, drums, firecrackers, etc.

⒋Use lights and firelight, such as Kongming lanterns, beacon towers, beacons, etc.

⒌There are other signs, decorations, etc., such as signs to lure the enemy.

Modern methods of transmitting information: 1. Wired communication transmission, such as telephone, fax, telegraph, television, etc.

⒉ Wireless communication transmission, such as walkie-talkies, BP machines (obsolete), mobile phones, and radios.

⒊Digital communication transmission, the most familiar, networked computers, digital TV.

⒋Paper communication transmission, such as letters, newspapers, etc.