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INDUSTRIAL AGE
The (TELEGRAPH)
The telegraph is a popular device that have been created in the industrial age,developed in the 1830's and 1840's by Samuel Morse and other inventors to communicate i long distances, the telegraph is still being revolutionized until today -
ELECTRONIC AGE
The transistor radio is a radio receiver which uses transistors to amplify the sound, transistor radios can be cheap and small and some use very little electric power. some can amplify the weak radio waves that are usually not picked up by weaker vacuum tube radios -
PRE HISTORIC AGE
The pre-historic device that can be fully proven to be used back in the days is the paintings of pre-historic people that have live back in 2.5 millions years ago, scientist have studied the paintings that have deeper meanings by their experiences. -
Digital age
CELLPHONE, it is a popular device that people have, it can be used to communicate and share ideas with other people across the globe, devices nowadays can be too powerful for a human can ever have due to the fastest way to attain knowledge through the internet it is just one click away to explore new ideas and to share with other people.