ICT

SEVERAL DEVICES OF COMMUNICATION DEVICE

OLD COMMUNICATION DEVICE

In 2 million years ago in BC there’s no communication device yet. So they use sign, drums, bamboo or a stick to communicate. For drums they must kill the animals and take their fur. And make a drum.

In a few years later they already think smart. So they take the coconut shell and write with a knife. Or write on the sand and soil with a stick.

Then in 12th or 14th century people already know some animals. And their specialty. So they use pigeons to send letters to others. First they write on a paper then they tie on the pigeon’s feet. Then they speak to the pigeon or show the map. And let the pigeon fly. Then some tranportation invent. Example in the sea if they want to call somebody in far away, they used a flag sign called semaphore.

Then after so many centuries pass people’s getting smarter. And technologies is growing people’s trying to invented something. So in 19th and 20th century they invent some communication device. Alexander Graham Bell invented a electric telephone in March 1876. Then later years Guglielmo Marconi invented a radio in 1902. And that radio also save a hundred people in titanic crash in 1912.

Then after telephone and radio invented John Logie Baird invented a communication device for eyes. He invented Television in 1927. That’s was the first TV ever made.

NEW COMMUNICATION DEVICE

Now a days people make it easier to communicate. There’s many modern communication device that can we use now. Walkie Talkie is a comunication device looks like radio. But we can talk and answer in walkie talkie. Walkie Talkie first used in world war II. But they called handie talkie. 

After walkie talkie they changed the walkie talkie into cell phone. Cell phone is a communication device that is used to call. Cell phone or other name mobile phone is founded by John F Mitchell and Dr. Martin Cooper of motorolla in 1973.

And after handphone developed there’s many technology will invented. Laptop now is used to  communicate also. Like facebook, yahoo, etc.