ramollari said:What is the best way of viewing data sent by a modem through a telephone line: as a changing voltage in terms of time or as moving electrical signals? In my Networking course exchanged bits, bytes, and packets, are portrayed as waves (of changing current) that propagate through the wires.
Modem data is encoded on a carrier. The modulation is both in frequency and amplitude. Old modems just used frequency modulation.ramollari said:Well, are the electrical signals 'waves'? Do they propagate from one point to another in a long cable or set the voltage throughout its length?
Electrical Data Communications is the transfer of data or information between two or more devices using electrical signals. This can include various methods such as wired or wireless connections, cables, and other transmission media.
Electrical Data Communications works by converting digital data into electrical signals, which are then transmitted through a medium such as wires or cables. The receiving device then decodes the electrical signals back into digital data, allowing for the transfer of information between devices.
The advantages of Electrical Data Communications include fast and efficient data transfer, the ability to transmit large amounts of data, and the ability to transmit data over long distances. It also allows for the integration of various devices and systems, making communication and data sharing easier.
The different types of Electrical Data Communications include wired connections such as Ethernet and USB, as well as wireless connections such as Wi-Fi and Bluetooth. Other methods include fiber optic cables, satellite communications, and cellular networks.
Electrical Data Communications has a wide range of applications, including internet and telecommunications, home and office networks, industrial automation, and smart devices such as smartphones and smart home systems. It is also used in various industries such as healthcare, transportation, and energy management.