Elizabeth's mother is a disembodied brain wired directly into a corporate computer network to process data.
: After Elizabeth excels at her tests, she becomes suspicious that her friend, Sheena, is in danger. She enters the computer network to seek help from her family dog—now a brain wired to direct data traffic. computer friendly eileen gunn pdf 17 top
: Elizabeth’s mother has become a disembodied brain within a computer to perform her job, and her brother is described as having been "optimized" into a machine-like state. Elizabeth's mother is a disembodied brain wired directly
If you are a student or researcher, you may be able to access the text through databases like JSTOR or the Internet Archive if they have digital lending for the specific 1989 issue of Asimov's Science Fiction where it debuted. : Elizabeth’s mother has become a disembodied brain
A search of her bibliography (ISFDB, Amazon, publisher archives) shows no story, essay, or PDF titled “Computer Friendly” or “17 Top.” However, she has written technology-related speculative fiction, such as: