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These bar graphs display the figure of hours that individuals invested in using modern technology per month from 1980 to 2015. Before 1995, because smartphones weren't popular yet, people spent most of their technology using time at radio. The time used for television watching was ranked in the second highest position but as with the exceptional high value of radio using time, it was relatively and remarkably low. In the case of the computer, it was consistently roughly half of the television until 1995. It's also observed that the use time of radio had a sudden decrease in 1955 1995. After 2000, with the emergence of new technology, the smartphone changed the whole flow. All of the positions don't show a change in 2000, but there were noteworthy changes in each figure. The gap between television, computer, and radio became smaller, in the way of sloping down of the radio and soaring of the computer and television. The preference of the smartphone also showed a rapid upsurge, from 0 hours to over 50 hours. After this period, people started to use smartphones more than ever. Specifically, the use time of the smartphone soared from around 50 hours to 350 hours during 15 years. The computer showed a similar pattern either, which ended up with the highest position in 2015. The figure of television also displayed a consistent increase throughout the period except for 2015. By contrast, the value of radio decreased for 15 years straight. To sum up, the graph can be divided into two periods, before 2000 and after 2000 by the emergence of smartphone technology. Until 2000, radio was the most preferred type of modern technology, but then its preference decreased gradually. Others showed a consistent increase throughout the period. |