Computer Network
MahaLakshmi A
Information Technology Consultant (IT Recruitment)- Astriya Solutions Student at Dr.SNS Rajalakshmi college of arts and science, Coimbatore.
Introduction to Computer Networks:
A computer network is a system of interconnected devices that communicate with each other to share resources, exchange data, and access services. Networks are a foundational technology in today's digital world, enabling everything from simple home file-sharing systems to global internet-based services like email, social media, and cloud computing.
In a computer network, devices such as computers, smartphones, servers, and routers are connected using various communication media, such as cables or wireless signals, allowing data to be transmitted back and forth. The primary purpose of a computer network is to facilitate resource sharing, including hardware (e.g., printers), software (e.g., applications), and data files.
A computer network is a system that connects multiple devices, such as computers, smartphones, servers, and other hardware, to enable communication and resource sharing. Networks can range from small Local Area Networks (LANs), typically found in homes or offices, to large Wide Area Networks (WANs) like the internet, which spans the globe.
Key components of a network include devices like routers, switches, and firewalls, as well as transmission media such as Ethernet cables and wireless signals. Network protocols like TCP/IP ensure smooth communication by defining rules for data exchange.
Computer networks are essential for various tasks such as file sharing, internet access, and communication. They can be wired or wireless and are vital in business, education, entertainment, and personal use, forming the foundation of modern digital life.