The pie chart illustrates the percentage of 6 distinguished brands in 2009 and 2019.
Overall: there has been significant changes in the usage of these technology devices due to several reasons.
Initially, the share of mobile phones increased insanely from 15% to 26% due to the fact that smart phones became an essential human need nowadays. On the other hand, laptops share decreased from 20% to 12% because laptops are no longer beneficial like in 2009 because it got replaced by smart phones with the technological advancement nowadays. It is clear that tablets share increased dramatically in 10 years because it became a crucial need for many people specifically students.
Secondly, desktop computers share went down from 18% to 12% because there are other diffierent brand such as tablets and smart phones became superior to desktop computers. Moreover, flat screen tv share increased roughly due to how modern it looks. Conventional Tv share decreased insanely because it does not provide the advanced technology people are looking for .
Ultimately, these brands share changed due to the significant advance in technology.
