Slot time
Slot time is a concept in computer networking. It is twice the time it takes for an electronic pulse (OSI Layer 1 - Physical) to travel the length of
the maximum theoretical distance between two nodes. In CSMA/CD networks such as ethernet, Network Interface Controllers (NICs) wait a minimum of the slot time (which should be a constant, NOT dependent on the individual network -i.e., it is a standard across all CSMA/CD networks that use a common NIC) before transmitting, allowing time (the maximum theoretical time - slot time) for the pulse to reach the NIC that intends to send.