Deciphering Network Communication: Which Device Sends Signals From A Computer Onto A Network?

Network communication forms the backbone of not just the internet, but also private and public networks around the globe. To understand how these networks operate, it is crucial to unpack and understand one of the fundamental questions – which device sends signals from a computer onto a network?

The simple answer to this question is a Network Interface Card (NIC), also known as a network adapter. This key component aims to establish a connection between a computer and a network, enabling data exchange. Let us delve deeper into the role of the NIC, and also acquaint ourselves with a powerful player in the modern network security landscape – ‘Meraki Advanced Security Services‘.

Understanding the Network Interface Card (NIC)

A NIC is the device that allows computers to communicate over a network. It acts as a liaison between your computer and the network cable, converting the computer’s data into a format that can be transmitted over the network. Essentially, it sends signals from a computer onto a network.

The NIC utilizes MAC (Media Access Control) addresses that identify the computer on the network and ensures seamless data transfer. It performs two essential functions – firstly, it prepares/formats the information/data from the computer for the network cable, and secondly, it controls the data’s transmission onto the network.

In simpler terms, imagine the NIC as a translator, transforming the data from your computer into a language that the network cable can understand and transmit.

The Role of NIC in Network Security

In the modern era of networking, the role of NICs extends to encompass network security. While the data is in transit on the network, it’s vulnerable to tampering and attacks. Certain advanced NICs have built-in security features, promoting safer data transmission and enhancing overall network security.

The Emergence of ‘Meraki Advanced Security Services’

Network security is a key concern in networking, whether on a small scale or an enterprise level. Thus, the emergence of solutions like ‘Meraki Advanced Security Services’ marks a noteworthy advancement.

Designed by Cisco, the Meraki Advanced Security Services offer a cloud-managed IT solution that integrates security into network infrastructure. Users can effortlessly oversee their network’s security, ensuring a more secure environment for data transfer.

Meraki’s solutions streamline the security process, providing intrusion prevention, Advanced Malware Protection (AMP), content filtering, and a secure firewall, among other features. These services significantly bolster the security standards of your network, effectively minimizing potential security risks.


The network interface card plays a fundamental role in network communication, effectively sending signals from a computer onto a network. However, the security of the data in transit is equally important. This is where solutions like the Meraki Advanced Security Services prove beneficial, integrating into the existing network infrastructure and adding an extra layer of protection. With evolving network technologies, prioritizing both network communication and security is crucial, given the growing digital dependency in every industry sector.