IBM Record Unit Machines

[Ron Hudson]

What were some interesing record unit machines from IBM


Card punches:

Which IBM card punch had a dial on the upper part of
the keyboard? I used one, but I forget what the dial
was for.

Card Sorters:

What is the machine that read card and could add
information and print reports, usually programmed with
a patch panel?

Were there any machines that read cards and wrote to
Mag tape?

Is there a collection of Information on the Internet
about these beasts?