Like 10BaseT but 10x faster, giving you 100mbit.
Like 10BaseT this uses a star configuration, where each client node (computer) connects to a central hub with one cable, and that cable cannot exceed 100m in length. As such, damage to any one cable only affects that computer - the rest of the LAN is still operational.
100BaseT can either be run over Category 3 cable by using all four pairs, or much more commonly over Category 5 cable, only using two pairs. (The infamous "Cat-5").
What does full duplex 100BaseT classify as?
See Also:
7 pages link to 100BaseT: