Grace Hopper

Grace Hopper was one  of the  co-founders  of the COBOL (Common 
Business - OrientedLanguage)  programming  language. COBOL is  a 
business-oriented programming language widely used in commercial
and  government  applications. Her work  contributed  to  making 
computer  programming  more  understandable  and  accessible , 
although this language is gradually being phased out today.

In the early 1950s, Grace Hopper developed a  compiler known as
A-0.The A-0 compiler had the  ability to translate code written
in a language  that  resembled English into  assembly language, 
allowing programmers to write computer programs  using a higher
-level language. This was  an early form of compiler technology
that paved the way for the development of highlevel programming
languages in the future. Grace  Hopper's work  had  a  profound 
impact  on the fields  of  computer  programming  and  software 
development.

During World War II, Grace Hopper joined the United States Navy
and  was assigned to the Harvard  University  to  participate  in
the  Mark I computer  project.  She  played a significant role in 
this project, contributing to the development of MarkI  computer, 
which was used for scientific research and military applications. 
It was  one of the first large-scale computers in the US.In 1966,
Grace Hopper retired at the age of 60, but just six months later,
she  was urgently recalled by the Navy due to the  need  for  her 
expertise in solving certain programming issues. Finally, in 1985
she retired with the rank of Captain.

In 1947, Grace Hopper was involved in  the maintenance  of  the 
Harvard  University's Mark II computer. During this process, she 
and her  team  encountered  a  computer  malfunction  and  began 
searching  for  the cause. Ultimately, they found the source  of 
the problem in a computer  switch  where  a  bug  was  trapped, 
leading to a short circuit. As a result, Grace Hopper taped  the 
moth to a notebook and wrote the words "first actual case of bug 
being found" in the notebook.  Later, the  term  "bug"  became a 
common term in the field of computer science.