What Are Servers and What Do They Do?

A computer programe or apparatus that offers a service to another computer program and its user, also known as the client, is referred to as a server. You may not even be aware of it, but you currently use hundreds of servers that are run by websites you visit daily. A server doesn’t have to be created specifically for this reason! But what feature do all of these servers share? And what exactly do they want to achieve? Let’s examine some of the most prevalent server kinds in more detail and see how they benefit us in our daily activities.

What is Server
What is Server?

Most likely, when you think of computers, you picture consumer products like your desktop or laptop. What about the server, though? What exactly are the services that the server offers to the client? This article will provide you with all the information you need to know about servers and what they do, allowing you to better appreciate why they are so crucial in today’s society.

What is a Server?

A server is a computer programme or apparatus that offers a service to a client, also referred to as another computer programme or the client’s user. Frequently, a server process runs continuously while it waits for requests to deliver information back. Additionally, it might activate in response to a request or an already-concluded event.

Application layer protocols like HTTP and FTP are frequently used by clients to connect to servers via Transmission Control Protocol (TCP) sockets. Other techniques are employed on older systems, such as those that used NCP or BSD sockets.

Which Kinds of Servers are there?

There are numerous distinct server kinds. They include everything from connecting users over wide-area networks (WANs) or even across internetworks to offering services to customers on a local computer or network. Your specific business requirements, as well as any potential municipal or federal legislation, will determine the kind of server you needed. Here is a summary of some of the most popular server types.

How Is Its Importance?

Your life could be simplified with a server. You are truly using a service offered by that other computer when you use a web browser, software, or another tool to access information or share data on that other computer system—like your email programme, a calendar application, or even your word processor. Client-server architecture is the term for it. Because you use these services every day without realising it, client-server architecture is probably already something you are familiar with.

For instance, if you want a Gmail update on the number of new emails you have in your Inbox, the service provider Google’s server is used to retrieve that data from your account (the client). There are servers all across.

How does it function?

A computer programme or apparatus that offers a service to another computer programme or that program’s user is known as a server. Your phone is one of many devices that has been configured to operate as a server. Since servers are made to be extremely dependable, they are frequently utilised in mission-critical circumstances. For instance, airline pilots manage updates on weather conditions, routes, and flight trajectories as well as information about the systems aboard their aircraft using servers in their cockpits.

Prohibiting phone use and call-taking during flights promotes passenger safety. Commercial banks also rely on servers for security; instead of holding records in a single location, each branch of the bank has its system in place for keeping track of them.

Why Are Servers Necessary in Our Lives?

Your computer (the client) and another programme that might be present on another machine are connected through a server. Your data is often not saved on your computer when you conduct an internet search, access an account, or use a service; rather, servers function as middlemen to connect you with what you need.

These are just a few examples; there are many more. For instance, if you’re trying to use Microsoft Word to edit a document on Google Drive, Microsoft will use servers to send the file back and forth.

Servers, both physical and virtual

Servers manage information storage in addition to simply storing it. For instance, when you take a picture with your smartphone, the device first downloads it to its local server (which functions as a kind of desktop computer) before transmitting it to other servers, like those run by Facebook or Instagram. Any computer programme or device that controls and saves data for another programme or device is referred to as a server.

Consider every linked PC as a virtual server that stores a tonne of data for other devices, such as smart computers or refrigerators. What distinguishes some devices as servers from others? There isn’t a simple solution to this question, as there aren’t too many computers; it all relies on the goal.

Although the term “server” is most frequently used to describe a computer programme, it is also sometimes used to mean a device or computing system.

What purpose does the server serve?

A server offers a certain service to other software or hardware. A shared resource, such as memory, storage, or computing power, may be accessible through the service, enabling improved functionality.

In other words, you can complete more jobs simultaneously by sharing resources across several computers connected to your network. Because both users have access to the same shared resource, such as a computer’s hard drive, two individuals can edit papers stored there simultaneously without having to purchase separate computers with all of that technology.

All they require is a single device with sufficient memory and processing power to carry out many tasks at once (or what we call multitasking). In a matter of seconds, one programme quickly splits into other programmes with distinct sets of data.


On a network, a server serves as a middleman between clients and other servers. It enables the communication between programmes operating on devices connected to its network or those connected to other networks. Computer networks typically provide resources such as data, graphics, or software services over great distances.

Clients do not need to be knowledgeable of how individual servers operate internally to access these resources through server-side network protocols like HTTP or FTP. Additionally, servers can offer client-to-client communication (as in web-based chat rooms) or group messaging (for example, email).

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