Happy Mainframe Day!
OTD 1964: IBM announces the System/360 family. 8-bit bytes ftw!

Shown: Operator at console of Princeton's IBM/360 Model 91.

@aka_pugs Really was the beginning of the modern era of computing, starting with the normalisation of 8-bit bytes and character addressable architecture.

Well, that's all true so long as we don't mention EBCDIC 🙂

@markd: Or, as my computing mentor, Harold V. McIntosh, called it, "Moby Dick".

@aka_pugs