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Early computers were limited just to do mathematical calculations. after a couple of years they evolved and could send text messages.

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Computers were used to provide repetitive lessons. Computers took the role as teacher and gave students positive and negative feedback in response to correct and incorrect answers.

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Language teachers began to change the way they used computers to teach language.
Computer programs were developed that accepted a variety of responses and did not judge the students when they made mistakes. Students were able to make choices and interact with the computer in a way that gave the student more control.  The PC was introduced in the late 1970’s. Apple computers were very inexpensive compared to the large mainframe computers and quickly became popular in schools.

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Educators began to move towards project-based learning, assignments that integrate a variety of skills, instead of teaching the skills separately.
CD ROMS: made multimedia programs possible, programs that include text, images, animations, videos and sounds. Hyperlinks allow the student to navigate within a program. The student has more freedom to explore and learn according to his/her own needs and interests.

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Technology nowadays is as important as eating, in terms of how useful they are, talking about the classroom and the educational system, they are a perfect tool, you have a infinite amount of books about every subject
, interviews, audios , different test, games , researches, you can also make interviews with foreign people and learn about them