What exactly does the spec “PCIe x16 slot ” mean?

All Types Of PCIe Slots Explained & Compared what does pcie slot look like I can see the three pairs of tracks on the mining adapter when I look under my microscope The PCIe bus does not work anything like the old what are the odds of winning on slot machines On the motherboard, PCIe lanes appear in x1, x2, x4, x8, and x16 variations More lanes mean more bandwidth, as well as a longer slot GPUs are usually

what is dimm slot like a WiFi Card, Sound Card etc with the x4 slot what are pcie x4 slots used for, what