Baud Day | 3/12/24 Atari and All Other BBS Systems Atari BBS - Amis https://static.wixstatic.com/media/2800fc_d1b4155cd611484d8fc56c4f16f82bab~mv2.png
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Atari BBS Vintage Computer Network

IT’S BAUD DAY 3/12/24

From the linked site:

Something that SysOps did when they advertised their BBS. Rather than write a BBS’ supported baud rates as “300/1200/2400”, they would write “3/12/24”. The reason for this abbreviation is probably due to how BBSs were advertised back in the day. Most BBSs were advertised in text files. Depending on the host computer, a text file may have 40 or 80 characters per line. So, space was a premium and dropping 6 characters from “300/1200/2400” made a big difference.