In the late 1800s , the Bessemer process was used in banking systems. electrical power. steel production. stock exchanges.

## Step 1<br />The Bessemer process is a method for mass production of steel from molten pig iron before the development of the open hearth furnace. This process was named after its inventor, Henry Bessemer, a British inventor and engineer.<br />## Step 2<br />The Bessemer process was developed in the mid-19th century and was a significant advancement in the steel production industry.<br />## Step 3<br />Given the options, the Bessemer process is not related to banking systems, electrical power, or stock exchanges. It is specifically related to steel production.