Pleas ID this IBM system....

[Jon Elson]

On 05/21/2019 04:33 PM, Chuck Guzis via cctalk wrote:
> How well sealed were the raised floors?
Not at all.  They were 2 foot squares sitting on adjustable 
pillars.  Each pillar supported 4 tiles where they all met 
at the corners.  You could easily slip a punch card (or 
credit card) between most of the tiles.  Anything poured on 
the floor would run down between the tiles.

Jon