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Grace Brewster Hopper (née Murray; December 9, 1906 – January 1, 1992) was an American computer scientist, mathematician, and United States Navy rear admiral. [1] She was a pioneer of computer programming.
In 1974, Baddeley and Hitch [5] introduced and made popular the multicomponent model of working memory.This theory proposes a central executive that, among other things, is responsible for directing attention to relevant information, suppressing irrelevant information and inappropriate actions, and for coordinating cognitive processes when more than one task must be done at the same time.
Hopper allows CUDA compute kernels to utilize automatic inline compression, including in individual memory allocation, which allows accessing memory at higher bandwidth. This feature does not increase the amount of memory available to the application, because the data (and thus its compressibility ) may be changed at any time.
Grace Hopper continued to contribute to computer science through the 1950s. She brought the idea of using compilers from her time at Harvard to UNIVAC which she joined in 1949. [79] [76] Other women who were hired to program UNIVAC included Adele Mildred Koss, Frances E. Holberton, Jean Bartik, Frances Morello and Lillian Jay. [66]
The first implemented compiler was written by Grace Hopper, who also coined the term "compiler", [6] [7] referring to her A-0 system which functioned as a loader or linker, not the modern notion of a compiler.
Grace, named for computer programming pioneer Grace Hopper, features 144 cores and twice the memory bandwidth and energy efficiency of high-end leading server chips, according to Nvidia.
Pioneered the application of queueing theory to model delays in message switching networks in his Ph.D. thesis in 1961–1962, published as a book in 1964. [39] He later published several of the standard works on the subject. In the early 1970s, he applied queueing theory to model the performance of packet switching networks.
Logbook entry containing the "bug" The contract to build the Mark II was signed with Harvard in February 1945, after the successful demonstration of the Mark I in 1944. It was completed and debugged in 1947, and delivered to the US Navy Proving Ground at Dahlgren, Virginia in March 1948, [5] becoming fully operational by the end of that year.