The chart gives information concerning the amount of times that people use modern technology divided into four categories per month between 1980 and 2015. Overall, use of television, computer and smartphone rose steadily without any fluctuation during the period, but use of radio showed a slight fluctuation between 1995 and 2015.
Between 1980 and 1995, radio was the most popular device. Although use of radio decreased gradually from 380 to 140 between 1990 and 2005, it increased considerably by approximately 290 between 2005 and 2015. Also, it is notable that use of computer showed low use from 1980 to 1995 compared with radio, but after 1995, it increased steadily until 2015. After all, it became the most popular device in 2015. This figure was approximately 370.
It is also noteworthy that use of smartphone showed the lowest use from 1980 to 2005. However, after smartphone was released, the use of smartphone skyrocketed between 2005 and 2015. This figure increased from almost 0 in 1980 to 350 in 2015. Moreover, there was an interesting change at use of television. The use of television showed relatively the most stable increase over the period. This figure increased by about 190.
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