The Slot class represents Connectors into which Packages are inserted. For example, a PhysicalPackage that is a DiskDrive ...

The Slot class represents Connectors into which Packages are inserted. For example, a PhysicalPackage that is a DiskDrive may be inserted into an SCA 'Slot'. As another example, a Card (subclass of PhysicalPackage) may be inserted into a 16-, 32-, or 64-bit expansion 'Slot' on a HostingBoard. PCI or PCMCIA Type III Slots are examples of the latter.