Summarize the evolution of mobile communication from 1895 to 5G.

Mobile communication evolved through three phases: proving wireless is possible (1895-1926), making it mobile and accessible (1979-2001), and making it fast enough to compete with wired broadband (2009 onward).

Phase 1: The Wireless Pioneers (1895-1926) Marconi proved signals could travel without wires. Over three decades, wireless went from 28 km telegraph to transatlantic commercial service to voice to the first mobile phone on a train. But none of this was truly "mobile" in the modern sense.

Phase 2: The Cellular Revolution (1979-2007) The cellular concept, dividing coverage into small cells with frequency reuse, made true mobile telephony possible. 1G proved it worked (analog voice). 2G/GSM made it digital, international, and added data. 3G/UMTS made multimedia mobile. Each generation solved the previous one's biggest limitation.

Phase 3: The Broadband Era (2009-present) LTE and 5G transformed mobile from a phone network that could do some data into a broadband data network that happens to also carry voice. The all-IP architecture of LTE was the turning point. 5G pushes into territory where mobile replaces not just landlines but specialized industrial networks.

The constant thread: Each generation was driven by demand outstripping capacity. Users always wanted more than the network could deliver, and engineers kept finding ways to squeeze more bits through the air.

Key point: Be able to place each generation on a timeline, name its key standard (GSM, UMTS, LTE, NR), its radio technology (TDMA, CDMA, OFDMA), and its approximate speed class (kbit, Mbit, Gbit).