Programming on metal cylinders?

[Chuck Guzis]

On 4/21/19 7:11 AM, John Foust via cctalk wrote:
> 
> I was assisting an older client the other day, a former Yale prof,
> and he's been programming since the late 1950s.  
> 
> He knew people who worked at Bletchley Park.  He also mentioned he
> knew people who had manually scribed their programs on some sort of metal
> cylinder.  Which computer system was that?
> 
> Part of what he'd like me to help with is a circa 2001 Compaq / DIGITAL
> version of a FORTRAN programming environment.  He had not yet found
> the installation media so we could try to get it running on Windows 10.
> I wonder if it will...

Could this be something that uses the same technology as a drum program
card on a keypunch?

--Chuck