Try restating your answer, I'm not sure what you mean. A microphone can be an input device when you plug it into a computer...
Yes
A Microphone does not output sound. It accepts sound. It is an input device.
A Microphone
The generic name is "input device". Examples include keyboards, touch pads, mice, microphones.
Keyboard
The Keyboard is an Input Device. It is used to enter text and utilise commands. It is a peripheral.
An input device is a device which takes in information from the user. This includes but is not limited to: Keyboards, mouses, joysticks, game pads, cameras, microphones, and graphics tablets. Each of these devices works differently, the only thing they have in common is their ability to take user input in a way the computer can process.
A microphone is an input. It takes sound from the environment and converts it into electrical signals that a computer can understand. It is an input device because it accepts sound from the environment and converts it to electric signals a computer can understand. There are various microphones, such as a condenser mic, dynamic mic, ribbon mic, or USB mic. You probably think of an audio input when you think of a microphone. The microphone isn't just for recording audio, though. It can also be an input for some things like: Voice commands on your computer and smartphone Signing your name to an electronic document Recording video or voice chat
A computer mouse does not use any input, it IS an input device.
Input, Output & Storage Devices
No, a voice synthesizer is an output device. An input device is anything that accepts information, these include keyboards, mice, microphones, webcams, ect. An output device is something that gives you information, some examples of output devices are computer screens and speakers. Since a voice synthesizer uses the speakers it is an output device.
It is an input device.