Lauren Weinstein on Nostr: In a 1960 edition of BSTJ, the human factors work that was used to determine the ...
Published at
2025-03-03 22:00:22Event JSON
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"content": "In a 1960 edition of BSTJ, the human factors work that was used to determine the ordering and positioning of touch tone buttons was detailed:\n\nhttps://www.vcalc.net/Documents/touchtone_hf.pdf",
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