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Which generation of mobile technology first introduced packet-switched data transmission?
- 1G
- 2G
- 3G
- 4G
Answer: 2G
2G (specifically GPRS/EDGE enhancements) introduced packet-switched data transmission, enabling always-on internet access and efficient data usage. 1G was analog voice only; 3G improved data speeds; 4G introduced all-IP architecture with higher bandwidth.