The basics of Networking
Networking is more of practical work than theoretical but you need to have the concepts.
What is a Computer Network?
A computer network is group of computers connected with each other.
The major components of a computer Network include:
Here’s an updated version of the post, including mentions of Bangladeshi companies and institutes for networking learning:
The Basics of Networking
Networking is more about practical work than theory, but having a strong understanding of the core concepts is essential to succeed in this field.
What is a Computer Network?
A computer network is a group of computers and devices connected to each other to share resources, data, and services. These connections allow communication, collaboration, and data transfer within homes, offices, and even across the globe.
Key Components of a Computer Network
A network is made up of various components that work together to enable smooth connectivity and data flow. Here are the major components:
1. NIC (Network Interface Card)
The NIC acts as the bridge between a computer and a network. It is either built into the computer’s motherboard or added as an external card. NICs can be classified into two main categories:
- Wired NICs: Use Ethernet cables to connect to a network.
- Wireless NICs: Use Wi-Fi to connect without the need for physical cables.
2. Hub
A hub is like a traffic intersection on a road. In networking, it serves as a central connection point where cables from different computers and devices converge. It broadcasts data to all connected devices, though it’s less efficient compared to modern alternatives like switches.
3. Switches
Switches are advanced devices compared to hubs. They connect multiple devices within a network and intelligently forward data only to the device it is intended for. This reduces unnecessary traffic and improves performance in larger networks.
4. Cables and Connectors
Cables and connectors physically connect devices in a network. Common types include:
- Ethernet cables (Cat5, Cat6): For wired connections.
- Fiber-optic cables: For high-speed and long-distance data transmission.
- Connectors: Such as RJ45, which attach cables to devices.
Networking and Learning Opportunities in Bangladesh
Bangladesh has a growing IT industry and offers plenty of opportunities for learning networking and working in top companies.
Top Companies for Networking in Bangladesh:
- Summit Communications Limited
- A leading network infrastructure company providing fiber optic connectivity and Internet services across the country.
- Grameenphone
- One of the largest telecom operators with extensive networking infrastructure and innovation hubs.
- Banglalink
- Known for its strong IT department and modern communication systems.
- Fiber@Home Limited
- Specializes in networking solutions and Internet services, focusing on nationwide fiber-optic networks.
- Link3 Technologies
- Offers Internet and networking solutions, including corporate and enterprise services.
Institutes for Learning Networking in Bangladesh:
- BASIS Institute of Technology & Management (BITM)
- Offers professional training on networking, IT, and telecom skills.
- Bangladesh Institute of ICT in Development (BIID)
- Provides practical courses on computer networking and IT infrastructure.
- Tech Academy Dhaka
- Specialized training programs on CCNA, CCNP, and other networking certifications.
- ICT Division Training Centers
- Government-run centers offering free and affordable training programs in networking and IT.
- Ahsanullah University of Science and Technology (AUST)
- A reputed university with specialized courses in networking and IT. website
Conclusion
Networking is a foundational skill in the IT world, powering everything from small home networks to large-scale enterprise systems. By understanding the basic components and their functions and leveraging resources in Bangladesh for training and experience, you’ll have a strong starting point to excel in this dynamic field.
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