devices in a computer system that can function both as input and output devices.

There are several devices in a computer system that can function both as input and output devices. Here are a few examples:

1. Touchscreen displays: These displays can act as both input and output devices. They allow the user to input data or interact with the computer system using touch gestures, while also displaying output or feedback from the system.

2. Modems: Modems can act as both input and output devices when used for communication purposes. They receive data from an external source (such as a phone line or cable), then convert it into a format that the computer can understand. Similarly, they can also send data from the computer to an external destination.

3. Network cards: Network cards can act as both input and output devices when used for network communication. They receive data from the network, then transfer it to the computer's memory for processing. Similarly, they can also send data from the computer to the network.

4. Sound cards: Sound cards can function both as input and output devices when used for audio recording and playback. They receive input from a microphone or other audio source, then convert it into a digital format that can be processed by the computer. Similarly, they can also send audio output to speakers or headphones for playback.

These are just a few examples of devices that can function as both input and output devices in a computer system.