AT&T Unix documentation
Anyone who used AT&T Unix from the 1960s, 1970s, and 1980s will immediately recognize this shelving unit full of dark red technical manuals. Allen is fortunate to have a complete set. Unix went hand-in-hand with the C programming language, as noted by famed Bell Labs engineer Brian Kernighan at VCF East X in 2010.
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Image: Evan Koblentz
Evan Koblentz began covering enterprise IT news during the dot-com boom times of the late 1990s. He recently published a book, "Abacus to smartphone: The evolution of mobile and portable computers". He is director of Vintage Computer Federation, a 501(c)3 non-profit and can often be found running marathons or having deep conversations with Floppy Disk Cat.