Aug 12, 2020 · Fundamentals

From Smoke Signals to eSIM: How SIM Cards Evolved for the IoT Era

Tracing centuries of communication—from ancient fire signals and carrier pigeons to 19th‑century telegraphy, 20th‑century mobile networks, and today’s ultra‑small eSIM and virtual SIM technologies—the article explains SIM card architecture, form factors, and their pivotal role in powering modern IoT connectivity.

IoT connectivityMobile NetworksSIM card

0 likes · 9 min read

From Smoke Signals to eSIM: How SIM Cards Evolved for the IoT Era

Huawei Cloud Developer Alliance

Oct 12, 2016 · Fundamentals

From Knotted Strings to 5G: How Communication Evolved Over Millennia

This article traces the evolution of human communication from ancient knot‑recording and signal fires, through postal couriers, carrier pigeons, and early telegraphy, to the breakthroughs of Morse code, Maxwell’s electromagnetism, the telephone, radio, television, and modern digital networks, highlighting key innovators and technological milestones.

Technology Evolutioncommunication historytelegraph

0 likes · 9 min read

From Knotted Strings to 5G: How Communication Evolved Over Millennia