Final answer:
A digital multiplexer facilitates data transmission by selecting from multiple input signals and forwarding the selected input to a single line, enabling clearer and more efficient communication through binary data processing. (option 1)
Step-by-step explanation:
A digital multiplexer is a device that facilitates data transmission. Digital multiplexers select one of many input signals and forward the selected input into a single line, which is useful in transmitting data from multiple sources over a single channel. Cell phone conversations and television voice and video images utilize digital data by converting signals into a binary sequence of ones and zeros. This digital format ensures clearer transmission, especially when signals are weak, and permits the use of algorithms to compress data for more efficient transmission within each frequency range.
Transmission of computer data also relies on the binary system, with each bit represented by a one or a zero. In the realm of digital electronics, devices such as integrated circuits, which house vast collections of transistors, are critical for processing these binary signals. The invention of integrated circuits has played a pivotal role in the advancement of the modern computer industry, allowing for efficient processing of large amounts of information.