It is called transistor -- transistor logic because both the logic gating function -LRB- e.g. , AND -RRB- and the amplifying function are performed by transistors -LRB- contrast this with ORGANIZATION@1 and DTL -RRB- .

It is called transistor -- transistor logic because the logic function -LRB- e.g. , AND -RRB- and amplification is performed by transistors .
