A computer input apparatus includes a keyboard and a mouse. The keyboard includes a housing, a number of input keys, and a telephone module for responding to a call or initiating a call according to a user's input. The input keys include standard keyboard keys and standard telephone keys. The mouse includes a main body, a number of buttons mounted on the main body, and a motion detecting unit for detecting motion of the mouse. The main body includes a mouse speaker configured for converting electrical signals into sound and a mouse microphone configured for converting sound into electrical signals. The buttons include a number of standard mouse buttons and an enable telephone button configured for enabling a telephone function of the mouse to answer a call.