What was CDMA technology's origin ?
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USA
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Russia
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Australia
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Germany
A
Correct answer
Explanation
CDMA (Code Division Multiple Access) technology was developed in the United States by Qualcomm and other researchers in the late 1980s and early 1990s. It became a key part of American telecommunications standards, particularly for 2G and 3G mobile networks. Russia, Australia, and Germany used GSM as their primary early digital mobile technology.