The Cell-Phone Revolution
An IMTS car phone, built by Motorola, from 1964. It weighed 40 pounds, half as much as the original 1940s units.(Motorola Archives, reproduced with permission from Motorola, Inc.) História do telefone celular na AmericanHeritage.com – The Cell-Phone Revolution. Excerto: “After the telephone was developed in the mid-1870s, and radio at Leia mais… »
