REFRENCES

• https://faqoid.com/advisor/os-comparison.php
• https://www.uswitch.com/mobiles/guides/mobile-operating-systems/
• https://www.slideshare.net/asrf786/comparison-of-mobile-os
• https://visual.ly/community/Infographics/computers/comparison-mobile-os-android-ios-windows-and-blackberry
• https://www.techopedia.com/7/29694/software/what-is-the-difference-between-a-mobile-os-and-a-computer-os
• https://www.sciencedirect.com/topics/computer-science/mobile-operating-system