Welcome to the alphabetical walkthrough of pioneers and personalities. You’re now on letter A. Click through the rest of the alphabet to find out more about the people who’ve helped shape telecommunication as we know it today.
Edwin Armstrong was the classic 'little guy' fighting 'big business', responsible for giant leaps in radio technology particularly FM radio (frequency modulation) used by broadcasters worldwide.
Visit the updated Communicate! galllery at the National Museum of Scotland.
Discover the records behind the history of telecommunications as BT Heritage launches online catalogue.
Last month: History of the internet learning resource
Gallery: From buttons to bytes
Fun activity: BT Tower activity
Search: History of computers
