William James Sidis's mother, Sarah (Mandelbaum) Sidis, was a medical doctor who graduated from Boston University School of Medicine in 1897. Sarah and her family immigrated to the United States. in the late 1880s, escaping the pogroms in Russia. Sarah married psychiatrist and psychologist Boris Sidis in 1894.

Sounds like she lead a pretty interesting life as well.

I think the closest thing back then was a fax, which could transmit monochromatic documents. Halftone (grayscale) fax was invented by Arthur Korn in 1902, enabling newspapers to send/receive photographs via telephone. That used mechanical parts, electronic ADCs were developed in the 1920s.

As for the newest word in the acronym: The word bit only appeared in 1946, the word bite (machine word) probably shortly after, spelled with a Y since 1956.