剧情简介：The telegraph and the telephone were the first electrical communications networks to become hallmarks of modernity. Yet they were not initially expected to achieve universal accessibility. In this pioneering history of their evolution, Richard R. John demonstrates how access to these networks was determined not only by technological imperatives and economic incentives but also ...(展开全部)
作者：Richard R·John
出版社：Belknap Press of Harvard University Press
ISBN：9780674024298
