History of Educational Technology timeline

Although projection was used in classes after the overhead projector, it actually invented before the overhead projector. It is invented for battles at first. However then as it has been developed, it became a useful tool for education.

The camera is widely used nowadays for online education especially after the pandemic. However, at first, it was not used for education and it has a really big history. Like most other technological tools, the camera was invented for other purposes and also was used in battles for spies. However, the camera is not used for just online education, because watching a video in class means that the camera was used for filming that video. In all ways, a camera is a beneficial tool for education.

Radio is a very old tool for education. In the 1980s it was used for education but now it is an unnecessary tool for education. The first radio was invented in 1895 but the purpose is unknown it was invented by Guglielmo Marconi.

Headphones and speakers are actually not the main tools for education but they have a big importance for education and that's why I write them together. They provide us better education especially while taking online classes or watching a video in class or in home.

Televisions are actually entertainment tools. However, as times passed and as the channels in television are increased, people added educational channels to televisions. In any topic about anything you can find a channel and you can learn some things that you need or you actually do not need but worried when you saw it.

The computer might be the biggest invention of all time. Because computer at first was only used for some calculations or etc. But now it is used for everything. You can do whatever you want with your computer And education is one of these events, actually the biggest one. Because you can carry your education to your home with you. You can listen to lessons thanks to your computer. You can use the internet for the information you want to gather for your class and etc.

The overhead projector actually was invented after the projector but was used before the projector in classes. The overhead projector was invented in 1945 by the USA army for the battle (2nd World War) After that, It has been used in education and job in the 1950-the 1960s.

Tablets are actually is a mix of smartphones and computers. They can be called little computers but also they can be called huge mobile phones. However, tablets neither can do callings nor can do any serious things that you can do on your computer. They are used nowadays and we know that they are a new technology but they were invented in 1972 for children. Actually, they are still used for children and their education in a more entertaining way.

Smartboards could be the most important invention for education. Because when they are used you do not need a computer, a projector and also you do not need to use your own hand to write some things on the board if you are a teacher. Because the smartboards are also computers and you can prepare your work and then you can share it via smartboard with your students. However smartboards were invented in 1990's, in Turkey we began to use them in 2015's

Smartphones are now everywhere to use for anything. You can see a smartphone in a person who is at his/her 90 or 5. They can be used for games, education, surfing on the internet and social media or etc. You can use smartphones for anything. Education could be mobile thanks to smartphones. And mobile education means that you do not need an environment like a class to learn anything. Thus, education could be provided anywhere which means a good thing for learners.

Jamison, D. and Klees, S. (1973) The Cost of Instructional Radio and Television for Developing Countries Stanford CA: Stanford University Institute for Communication Research. Ellington, H. (1993). Handbook of educational technology. Nichols Publishing, PO Box 6036, East Brunswick, NJ 08816. https://l24.im/dbwf
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https://webrazzi.com/2011/12/29/tablet-cihazlarin-tarihine-yolculuk/
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