It is true that in data communications the sending device is usually a computer. The main components are transmitter, receiver & antenna and every communication device must have all these three components
modem
A type of communications device that connects a communications channel to a sending or receiving device is a modem. Modems modulate and demodulate signals for transmission over various types of media, such as telephone lines or cable systems. They enable digital devices to communicate with each other by converting digital data into analog signals and vice versa.
A computer generally has four major components: Input device, Output device, Storage, CPU
Sending computer system and equipment ( sending unit transmits a signal)to a modem ( that can perform many tasks)telecommunications ( medium is any material that carries a electronic signal to support communications )to another modem ( connected to the receiving device )the receiving unit ( receives the signal )the process is reversed.
It is commonly referred to as an 'output' device because it (typically) does not send information back to the computer. A mouse would be considered and 'input' device because it is sending information back to the computer.
It is commonly referred to as an 'output' device because it (typically) does not send information back to the computer. A mouse would be considered and 'input' device because it is sending information back to the computer.
"PCI communications device" is displayed in the Device Manager when Windows does not have a driver for a PCI device that is used for networking in some fashion. It could be a dial-up modem, Ethernet controller, or a wireless card. You will need to download drivers from your computer manufacturer to display a more specific name in the Device Manager and make the yellow question mark go away.
output
It means that either the "communications buss" or a connector has failed or the computer or some device on the buss has failed.
Yes, a telegraph is a device for sending messages. It sends telegrams.
The main difference is in their functions. An input device sends a signal to a main system to be translated, such as a keyboard sending input to a computer. An output device takes a translated signal from the system and relays it, such as a speaker playing music from a computer.
You actually use several devices to send pictures to your friends.Your digital camera to take the pictureYour computer to process and send the pictureThe Internet (which is made up of lots of computers) to send the pictureYour friends Computer screens to see the picture.Although the actual device for sending anything in and out of your computer is referred to as the network card/chip. It handles sending and receiving information to/from the internet.