What is Wi-Fi? features, Application, Advantage, Disadvantage by Anshul 2023

Brief introduction about Wi-Fi:

1. Wi-Fi is a popular wireless networking technology.

2. Wi-Fi stands for Wireless Fidelity which is the general term that refers to the IEEE802.11 standard for Wireless Local Network or WLAN.

3. Wi-Fi was invented in 1991 by NCR Corporation/AT&T in the Netherlands.

4. By using this technology we can exchange information between two or more devices. Wi-Fi was developed for mobile computing devices such as laptops, but is now being used extensively for mobile applications and consumer electronics such as televisions, DVD players and digital cameras.

5. Data is transferred over radio frequencies, allowing Wi-Fi enabled devices to receive and transmit data when they are in range of a Wi-Fi network.

Wi-Fi network element

Access Point (AP) - An AP is a wireless LAN transceiver or "base station" that can connect one or several wireless devices to the Internet at once.

Wi-Fi cards - They accept wireless signals and relay information. They can be internal and external.

Security measures - Firewall and anti-virus software protect the network from uninvited users and keep information secure.

Wi-Fi features include:

Wireless Connectivity: Wi-Fi allows devices to connect to a network without the use of physical cables, providing greater mobility and flexibility.

High Speed: Wi-Fi networks can provide high-speed Internet access, allowing users to download and upload data quickly.

Easy Setup: Installing and configuring a Wi-Fi network is easy, requiring minimal technical knowledge. Most modern devices come with built-in Wi-Fi connectivity.

Multiple Device Connectivity: A Wi-Fi network can support multiple devices at the same time, allowing multiple users to connect to the same network and access the Internet simultaneously.

Security: Wi-Fi networks can be secured using encryption and other security measures, which protect against unauthorized access and hacking.

Range: A Wi-Fi network can cover a wide range of distances depending on the type of router and the environment it is used in.

Compatibility: Wi-Fi is a widely adopted technology and is compatible with a wide range of devices including smartphones, laptops, tablets and smart home devices.

Interference: Wi-Fi signals can be subject to interference from other wireless devices and physical obstacles such as walls and buildings, which can affect network performance.

Reliability: Wi-Fi networks can sometimes suffer from dropouts or signal loss, especially in areas with high network congestion or interference.

Application of Wi-Fi:

• Mobile app

• Business applications

• Home Applications

• Computerized Application

• Automotive segment

• Internet Browsing

• Video conference

Advantage of Wi-Fi:

• Wireless laptop can be carried from one place to another.

• Wireless Wi-Fi networks can reduce the cost of wiring communication equipment.

• Wi-Fi setup and configuration is easier than cabling.

• It is completely secure and it will not interfere with any network.

• We can connect internet through hot spot also.

• We can connect to the Internet wirelessly.

Disadvantage of Wi-Fi:

• Wi-Fi generates radiation that can harm human health.

• We need to disconnect the Wi-Fi connection whenever we are not using the             server.

• Data transfer has some limitations, we cannot transfer data over long distances.

• Wi-Fi implementation is very expensive as compared to wired connections.