answers :
she wrote the first programming manual
she developed the compiler
she perfected the subroutine
explanation:
While working on the UNIVAC I and II, Hopper pioneered the idea of automatic programming and explored new ways to use the computer to code. In 1952 she developed the first compiler called A-0, which translated mathematical code into machine-readable code—an important step toward creating modern programming languages.
After the end of the war, Hopper became a research fellow on the Harvard faculty and in 1949, joined the Eckert-Mauchly Corporation, continuing her pioneering work on computer technology. Hopper was involved in the creation of UNIVAC, the first all-electronic digital computer. She invented the first computer compiler, a program that translates written instructions into codes that computers read directly. This work led her to co-develop the COBOL, one of the earliest standardized computer languages. COBOL enabled computers to respond to words in addition to numbers. Hopper also lectured widely on computers, giving up to 300 lectures per year. She predicted that computers would one day be small enough to fit on a desk and people who were not professional programmers would use them in their everyday life.