Have you ever thought about how we can access information in every corner of the world with a simple click? All this is possible thanks to networks. These networks work like magic and connect the world.
What are computer networks?
Look, networks or networking in simple language means connecting two or more devices to each other. These devices can be , mobile phones, routers or even different applications.
Now networks have become such that without them, many of the daily tasks we are used to are not possible.
The main components of networks
To put it simply, a computer database shop of two and links . Links are responsible for connecting two or more nodes. How these links move information is determined by communication protocols . Devices that send or receive data are usually known as ports .
1. Network devices
Network device or nodes are the device that must be connect to each other in the network. Now let’s review some examples of these devices:
- Mobiles and other consumer devices: these are the devices that we use directly.
- Routers: Routers are responsible for choosing the best path for data transfer in the network. These devices move data packets between different networks to reach the final destination and make large networks more efficient.
- Switches: Switches are like multipaths that allow multiple network devices to communicate with each other. By connecting several data cables to the switch, you can establish communication between several devices.
- Gateways: Gateways act as gateways between two different networks. These gateways can be firewalls, routers or even servers.
2. links
Links are the paths through which data is transmit. These links have two types:
- Optical fiber transmits data with light pulses.
- Wireless: These types of links use radio waves or electromagnetic signals to communicate. We call this type of transmission wireless . Famous examples of this method include communication satellites, mobile networks and Wi-Fi technologies.
3. Communication protocols
Communication protocols are the uruguay mobile phone numbers list rules and standards that all nodes must follow to transmit information.
- TCP/IP: This protocol is a standard model for communication in modern networks, which has four layers:
○ Internet layer: which is responsible for packaging and sending data.
○ Transport layer: which helps to keep communication between devices stable.
○ Application layer: which determines how applications can use the network.
4. Network defense
All these nodes, afb directory form the foundations of a function properly threats. Some examples of network defense tools include firewalls , intrusion detection systems (IDS), intrusion prevention systems (IPS), network access control (NAC), content filters, proxy servers, anti-DDoS devices, and load balancing.
As such, these components and protocols allow networks to securely and efficiently transfer information and protect our digital world.
How do computer networks work?
We can consider networks as a big city with many streets and roads. Nods are the cars that move in these streets. Machines can be modems, hubs, switches and other devices that are responsible for data transport.
