What does 'Denom' mean on American slot machines?

Can anyone explain why some people who play slot machines switch to higher denomination then proceeds to bet minimum on said denomination?

shorts Gil asks, “Does it make a difference if you change the denomination on a slot machine

slot 603 login 1 N A Slot Milling Machine Illustrated The Condition , themselves denominations- ironmongers , grocers , country chemists , and so forth

slot raja gacor The denomination on a slot machine is what a single credit is worth On a penny denomination slot machine, that credit is worth a penny