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Network

A group of connected computers sharing information.

Internet

A global network connecting computers worldwide.

Hub

Device sending data packets to all connected devices in a LAN

Switch

Device sending data packets only to intended devices using MAC addresses

Network Interface Card (NIC)

Device enabling computer network connection by converting data into electrical signals

Wireless Network Interface Card (WNIC)

NIC for wireless connectivity using an antenna.

Bridge

Connects LAN segments to improve internal connectivity.

Router

Directs data packets between networks using IP addresses

Access Point

Enables the connection of wireless and wired network via Wi-Fi.

Modem

Converts digital signals to analog for internet transmission over telephone lines and vice versa.

Firewall

Security device monitoring and controlling network traffic based on predefined rules.

Bluetooth

Short-range wireless technology for device connection using radio waves.

Wi-Fi

Wireless technology for larger networks with faster speeds and better range.

Cloud Storage

Data storage on remote servers managed by hosting companies

MAC Address

Unique identifier for network interfaces on the physical network segment.

IP Address

Unique label for internet-connected devices in IPv4 and IPv6 formats.

IP Address types

1. Private IP

2. Public IP

3. Static IP

4. Dynamic IP

Private IP

Used in local networks.

Public IP

Used on the internet.

Static IP

Unchanging IP address.

Dynamic IP

IP address that changes frequently.

LAN (Local Area Network) Advantages

1. Share resources (printers, files).

2. Easy communication between devices.

3. Central control for security.

LAN Disadvantages

1. Virus can spread easily.

2. Slower access to outside networks.

3. If the main server fails, the network can stop working.