Cannot understand lan cable type

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The discussion centers on confusion regarding LAN cable types, specifically the use of a yellow LAN cable to connect two laptops directly. While traditionally a crossover cable is needed for direct laptop-to-laptop connections, newer devices can automatically detect and adjust to the type of cable used, allowing a straight-through cable to function in this scenario. This automatic adjustment is part of the Medium Dependent Interface (MDI) technology. The user expresses gratitude for the clarification on MDI, indicating a newfound understanding of the topic. Overall, advancements in technology have simplified the connection process between devices.
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i have dsl connection in my home the wire that is used to connect my pc with router is yellow colouerd lan cable now i have learned that straight wire lan cable is used to connect a router and pc but i connected two laptops using this cable without any switch and router and it workedBUT HOW? two laptops can only be connected directly using crossover lan cable now i don't understand this please help
 
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thanks i didn't have the slightest clue about MDI
 

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