What is "o-matic"? [closed]

I found "o-matic" in my dashboard of wordpress.com. There is "Read-o-Matic". And there are some news from staff. What does it mean? I feel it's "recommended to read", isn't it?

This term comes from a number of American mechanical devices, and "omatic" is short for "automatic."

The so-called "Veg-o-matic" was an automatic vegetable slicer.

"Mince-o-matic" was an automatic meat mincer.

And "read-o-matic" would be an automatic reader (machine).

Does anyone know of the first use of this?

It seems a 1950s term, the only example I can find is Ford's first automatic transmission the "cruise-o-matic" in 1958.