A computer essentially takes input, processes it, and produces output. Which person developed a machine in the mid-1880s that accomplished this? John William Mauchly
Charles Babbage
Sir John Ambrose Fleming
Herman Hollerith

The answer to this question is given below in the explanation section. the correct answer is Herman Hollerith.

Explanation:

Charles Babbage (incorrect)

Charles Babbage considers the father of the digital computer. He was a mathematician, philosopher, inventor, and mechanical engineer, Babbage originated the concept of a digital programmable computer. But he died on 18 1, 1871. so, this option is not correct.

John William Mauchly (Incorrect)

John William Mauchly was an American physicist who, along with J. Presper Eckert, designed ENIAC, the first general purpose electronic digital computer, as well as EDVAC, BINAC and UNIVAC I, the first commercial computer made in the United States. But John William Mauchy born on August 30, 1907 and died on January 8, 1980. So, this option is not correct.

Sir John Ambrose Fleming (Incorrect)

Sir John Ambrose Fleming was an English electrical engineer and physicist who invented the first thermionic valve or vacuum tube, designed the radio transmitter with which the first transatlantic radio transmission was made, and also established the right-hand rule used in physics.

Herman Hollerith (correct)      

Herman Hollerith was an American businessman, inventor, and statistician who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting. This machine is patented in 1884.