---

1G - First Generation
1979
analog voice

---

2G - Second Generation
1989
digital voice and data
make calls, send text and images
SMS - simple message service

---

3G - Third Generation
2001
mobile web standards
web capabilities
mobile smartphones

---

4G - Fourth Generation
2009
publicly available LTE - Long Term Evolution
the Internet is defined by mobile devices
streaming services

---

5G - Fifth Generation
2019
full duplex
beamforming
millimeter radio waves
very high frequency spectrum (30GHz - 300GHz)
use of small cells
massive MIMO (Multiple Input Multiple Output)

---