Continuing with the Mark computers, she also worked on Mark II and Mark III. As the Mark II was being tested at Harvard, the computer had a malfunction. Hopper discovered there was a moth trapped inside one of the panels. After the incident, the term “debugging” became known in the technological world when a problem is solved. Later, in 1949, Hopper moved into a private industry. First, she joined the Eckert-Mauchly Computer Corporation, then to Remington Rand. There she supervised the programming for the UNIVAC computer.
After a few years, Hopper and her team created the first compiler for computer language. A compiler is a program that translates worded instructions into a code that computers can comprehend. This compiler was a forerunner for the COBOL, or Common Business Oriented Language. The COBOL is a widely used language that was soon adapted all around the world. Before this invention, programmers had to write very long instructions in binary code, a form of computer language, for every new form of software created. Thanks to Hopper and her team, this program allows businesses and governments to “communicate” with