What is the difference between a PCI and ISA slot?

ISA Definition - What is an ISA expansion slot? - isa expansion slot The PD slot or PDS is the oldest form of expansion slot Up to three slots can be accommodated, and each slot also accepts an ISA card, but not an MCA or EISA isa slot function What is ISA slotindustry structure architecture kya haidefinition of ISA bushistory of ISA

isa slot pinout The battle to replace the standard expansion slot in the IBM PC ISA, MCA, Micro Channel Architecture, NuBus, pc, PCI, Peripheral