Wi-Fi

Wi-Fi (Wireless Fidelity) is a wireless network technology that uses high-frequency electromagnetic waves to transmit data.

 

Wi-Fi Hardwares:

1.     Access Point

Connect a group of wireless device to an adjacent wired LAN

2.     Wireless Adapter

Allow device to connect to wireless network

3.     Router

Connect multiple devices to the internet and connect one device to another devices

4.     Bridge

Can connect two networks to form a single network. Wireless bridging can connect a wired network to wireless network

5.     Embedded System

 

Wi-Fi’s Advantages

1.     Convenience

Allow multiple users to connect to the same network. Connection can be made by routers or hospot technology

2.     Mobility

We don’t need to always need to sit in front of computers to get internet access. We can still get the internet access from our mobile device as long as we still in the range of Wi-Fi Access Point

3.     Productivity

We can accomplish our task anywhere and anytime as long as we get the internet access

4.     Cost

Wireless networks offer significant advantages in terms of cost and labor. Especially when installing a new Wifi network, you can reduce wiring and maintenance costs.

 

Wi-Fi’s Disadvantage

1.     Speed

The Wi-Fi’s speed is slower than wired connection (about 1-54 Mbps). The speed also depend on how far we are from the router. If we are far away from the router, the speed is slower.

2.     Security

Wifi is vulnerable to hacking. Due to its wireless nature it has high chances of being hacked especially the Public Wifi networks.

3.     Range

The Wi-Fi’s range is limited. If we aren’t in the range of the Wi-Fi, we can’t connect to internet