Resistor, capacitor and IC logic gate are widely used in the electronic circuit, different values and types are needed to design and in practical operation. To get the proper output of the circuit the component must have accurate value, Nowadays Computer is very much available, Peoples especially students take it their everyday life partner. For this reason we want to make the computer as a versatile system. The circuit described in this paper “Computer interfaced IC logic gate tester and R-C meter” is a device that can test and measure the value of the IC and RC by connecting directly to the computer through the parallel port and using a software that control the device is a easy process for testing the logic IC, resistor and the capacitor. It may used instead of multimeter.