List Three Popular Smartphone Operating Systems

question 29

Short Answer

List three popular smartphone operating systems.
A. ___________________
B. ___________________
C. ___________________

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Definitions:

Roosevelt's Inauguration

The ceremony marking the beginning of Franklin D. Roosevelt's presidency, first occurring on March 4, 1933, where he addressed the issues of the Great Depression and outlined his New Deal.

Katyusha Rocket Launchers

A type of rocket artillery system first developed by the Soviet Union during World War II, known for its powerful barrage capability and mobility.

Cavalry

Military units or forces that fought on horseback, traditionally important for reconnaissance, charging, and flanking maneuvers in warfare.

Yamamoto Isoroku

A prominent Japanese naval commander known for his planning of the Pearl Harbor attack during World War II.