Device drivers establish the communication between PC's and the device, drivers are the interface of devices,
a communication device
A USB cable is neither an input nor an output device by itself. It is a data transfer medium that facilitates communication between devices. The devices connected through a USB cable can be input devices (like a keyboard or mouse) or output devices (like a printer or monitor), depending on their function. The USB cable simply enables data transfer between them.
It is called a device driver.
A speaker would be considered a communication device.
Device Driver
http://www.automationmedia.com/AutomationControls_KnowledgeBaseDetail.asp?ID=%2097 this link may solve it
A communication device is a peripheral used for communication between the computers and other devices. Modem is a popular communication device which is normally used for Internet communication. Infrared, Bluetooth and LAN card are the examples of communication devices.
There many different communication devices out there. There is the phone, a computer, walkie talkies, and even a tablet. A communication device allows communication between people.
a device driver is software, making communication between your motherboard and your OS, probably Windows, possible.
added device called networking
Device drivers establish the communication between PC's and the device, drivers are the interface of devices,
a communication device
a communication device
sometimes, depends on what you are using it for
Communication device
packet switching technology which uses short fixed length