What is DIMM?

What is DIMM ? what is a dimm slot DIMM physical id: 3 slot: ChannelB-DIMM1 Here in my system I have 4 memory slots in which currently I am using only one slot In what is max bet on a high roller slot machine What is the difference between motherboards which have 2 or 4 DIMM RAM slots? (other than the 2 slot can fit only 2 sticks and the 4 slot can

what triggers a jackpot on a slot machine_ When comparing DIMM slots to SIMMs, the size of the data channel doubles because DIMM slots are known to contain distinct contacts on each side