Computer networks

Computer Network

A group of computers and devices connected to each other to communicate and share resources.

Communication Links

Paths that carry data, such as wires or wireless signals, used in a computer network.

Resource Sharing

The ability to share devices like printers and software among connected computers.

Remote Access

Accessing files and services from a different location, not just from one fixed place.

Local Area Network (LAN)

Connects computers within a small area like a home, office, or classroom.

Metropolitan Area Network (MAN)

Connects multiple LANs across a city or large area, larger than a LAN but smaller than a WAN.

Wide Area Network (WAN)

Connects networks across very large distances like cities, countries, or continents.

Point-to-Point Network

A network with a direct link between exactly two devices.

Broadcast Network

A type of network where all devices share one common channel for sending data.

Physical Topology

The actual physical layout of a network, showing where cables and devices are placed.

Logical Topology

How data travels inside the network, describing the path it takes from one device to another.

Star Topology

A topology where every computer connects to one central device, like a switch.

Bus Topology

A topology where all computers connect to a single backbone cable.

Ring Topology

A topology where each computer connects to two other computers, forming a closed loop.

Mesh Topology

A topology where each device connects directly to one or more other devices.

Hybrid Topology

A mix of two or more different topologies combined to utilize their strengths.