[GreenKeys] Punchcards. Was: off topic? sort of..

[Jim Haynes]

On Thu, 10 Sep 2015, Jones, Douglas W wrote:
>
> Prior to 1928, IBM also used 45 column 12 row round hole cards.  In 
> 1928, they announced a new standard card layout supported by their new 
> line of punches and tabulating machines.  The new line had two major 
> features:

So I guess this was the same as the Powers card shown in a previous email.