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കാലം മാറുന്തോറും വിവരവിനിമയ മേഖലയിലും മാറ്റങ്ങൾ ഉണ്ടായിക്കൊണ്ടിരിക്കുന്നു. പണ്ട് വിവരങ്ങളും വാർത്തകളും കൈമാറുന്നതിന് ഉപയോഗിച്ചിരുന്ന സംവിധാനങ്ങളല്ല ഇന്നുള്ളത്. സന്ദേശങ്ങളും വിവരങ്ങളും കൈമാറുന്നതിനായി പണ്ട് ഉപയോഗിച്ചിരുന്ന ചില സംവിധാനങ്ങളെ പരിചയപ്പെടാം.
Perumbara is a way of conveying royal proclamations to the people in ancient times. Royal soldiers will be sent to different parts of the country with proclamations to inform. On reaching the designated place, the Perumbara will be sounded. Local people gather there when they hear the sound of Perumbara. Then one of the royal soldiers will read aloud the royal proclamation. Then move on to the next area and do the same.
Anchalotaka was a postman who delivered letters from one place to another. They used to run postal items from one place to another. Running with a long stick to which a bell is tied. When running like this, the bell will ring and people will give way on hearing that sound. A pointed spear is also handy for self-defense in case of attack by thieves or wild animals.
During the royal reign, royal messages were written on palm leaves, copper plates or silk cloth. Doothan are the persons appointed to deliver these messages.
Pigeons were also used in ancient times to carry messages. Specially trained pigeons were used for this purpose.
semaphore, method of visual signaling, usually by means of flags or lights. Semaphore signaling from high towers was used to transmit messages between distant points. A persons who held a small flag in each hand and, with arms extended, moved them to different angles to indicate letters of the alphabet or numbers.
