Back in the day, before broadband fired live quotes and analysis straight to our smartphones, people used to read bid-ask spreads off of chalkboards and historical data off of miles of ticker tape.
We decided to go back in time to see how trading was done in the pre-Bloomberg terminal era. Even before ticker tape was a thing.
With the help of images from the Museum of American Finance in New York, we put together a brief, visual history of trading technology, from ticker tape to the present.
Editor's Note: Former Business Insider writer Rob Wile contributed to the original version of this feature.