Which instrument that see the work during working in which we have mechanisum.
In which we can see the result only or in which depend on the IC’s and circuit.
- RTL:Resistor Transistor Logic (1960’s).
- DTL:Diode Transistor Logic (before 1960’s).
- TTL/T2L:Transistor Transistor Logic (Introduce in 1970).
- SCHOTKY TTL:Schotky Transistor Transistor Logic.
- ECL:Emitter Coupled Logic.
- IIL/I2L:Integrated Injection Logic.