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Telegrams
Can you imagine life before the telephone? In the past, people sent letters or
telegrams to communicate with other towns. To write a letter, people used a pen and
paper; then, they put the letter in an envelope, and dropped it at the post office.
Telegrams were messages transmitted through an electric device. -
Alexander Graham
Alexander Graham Bell was a scientist from Scotland
he accomplished the first telephone call. -
The first international phone call
International phone call from New York to London was in 1926. -
DR. Martin Cooper
Dr. Martin Cooper was an inventor from the USA. He was the
father of the mobile phone. The mobile phone was 25 centimeters
long and it weighted more than one kilo. People talked for 30
minutes and then the battery died. -
The IBM company
In the 90s, the IBM company invented the first touchscreen phone.
People talked on the phone, sent emails and messages. It had
Basic apps like a calendar and calculator. -
Now
Now, mobile phones are smaller. They also have more functions.
You can send text messages, listen to music, play computer games
and take photos. You can surf on the net.