ICT FINAL

Network

Connected computers sharing info

Internet

Global network of connected computers

Hub

Connects devices to same network and shares data with all

Switch

remembers the mac address of devices on a network.

NIC

Lets a computer join a network; each NIC has a unique MAC address.

NIC stands for

Network Interface Card

WNIC

Wireless version of NIC

Bridge

Connects parts of a network; acts as a bridge for seperate parts of LAN

Router

Directs data between networks and to the internet

Access Point

Connects (a bridge that connects) wireless devices to a wired network

Modem

Converts digital signals into analog signals

Firewall

monitor comming and going network traffic

Bluetooth

Short-range wireless connection

Wi-Fi

Long-range wireless connection/ operates at 2.4-5 ghz

Cloud Storage

Saves data online

MAC Address

Unique number for each device

IP Address

Unique number for each internet device

Types of IP Addresses

1. Private IP

2. Public IP

3. Static IP

4. Dynamic IP

Private IP

Used in local networks not used on the internet

Public IP

Used on the internet

Static IP

Doesn't change

Dynamic IP

Changes often

Advantages of LAN

1. Share resources (printers, files).

2. Easy communication between devices.

3. Central control for security.

Disadvantages of LAN

1. Virus can spread easily.

2. Slower access to outside networks.

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