Data can be transferred from one computer to another via what device?

Prepare for the Medical Dosimetry Certification Test with comprehensive flashcards and multiple choice questions, complete with hints and explanations. Ensure your success by studying key topics covered in the exam!

The correct answer, which is a modem, plays a crucial role in facilitating data transfer between computers, particularly when they are connected via different types of networks, such as a home network to the Internet service provider (ISP). A modem serves as the interface between the digital data from a computer and the analog signal over communication lines. This device modulates and demodulates signals, allowing computers to communicate over their respective networks.

When a computer sends data to another over the Internet, it is often through a modem that connects to the ISP. The modem takes the digital signals from the user's device, modulates them into a format suitable for transmission over the phone lines or cable, and sends them to the ISP. Upon reception, the modem at the ISP demodulates the signal back into digital data that can be routed to the intended destination.

In contrast, other devices such as routers, switches, and network interface cards all serve specific functions within networking but are not primarily responsible for the initial connection to the global network. Routers manage traffic between different networks, switches facilitate communication within a local area network by connecting devices, and network interface cards provide the hardware necessary for a computer to connect to a network. Each of these components is vital for overall network functionality,

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