Articles for category: Computer Network

Priyanshu Pandey

MQTT Protocol

MQTT stands for Message Queuing Telemetry Transport and is a lightweight publish/subscribe messaging protocol for Machine to Machine(M2M) telemetry in low bandwidth environments. It was developed in 1999 by Arlen Nipper and Andy Stanford-Clark of IBM to link Oil Pipeline telemetry systems through satellite. It was once a proprietary protocol, but in 2010 MQTT was made available royalty-free, and in 2014 MQTT was made an OASIS standard. MQTT ...

Akshay Mishra

Integrated Services Digital Network (ISDN)

Integrated Services Digital Network (ISDN) comprises communication standards facilitating the concurrent digital transmission of voice, video, and data over traditional public switched telephone network circuits. Unlike its predecessor, which primarily transmitted voice, ISDN’s innovation lies in integrating speech and data on the same lines, a capability absent in traditional telephone systems. Operating as a circuit-switched ...

Neha Kumari

Hot Spot 2.0

Hotspot 2.0 (HS2), also known as Passpoint” or “Next Generation Hotspot, represents a significant evolution in public Wi-Fi access. This innovative standard, driven by the Wi-Fi Alliance and endorsed by the Wireless Broadband Alliance, simplifies and secures the process of connecting to public wireless hotspots. It’s built on the IEEE 802.11u standard, enhancing how devices discover and securely connect to network ...

Saksham Arya

How Does the Internet Work?

An internet is a huge network of networks that helps us to connect millions of computers together. These computers that are connected to each other through the internet can interact with each other over the internet. The Internet operates on a technique called packet switching. In packet switching, the data that is transferred among the different computers ...

Priyanshu Pandey

What is Firewall in Computer Network ?

A firewall can be hardware or software that controls a device’s secure in-flow and out-flow of data. It monitors network traffic and serves as a firewall between trusted and untrusted networks. Firewalls, particularly Next-Generation Firewalls, are designed to protect against malware and application-layer attacks. When you use a firewall as part of your security infrastructure, you configure your network with specific ...

History of Computer Network

Overview The world’s current population is around 7.6 billion people, and the number of devices connected to the internet is estimated to be over 50 billion, implying that each person uses approximately 6 internet-connected devices. This number has been increasing since the day when the first network, ARPANET was made. In today’s world, one cannot imagine life without the internet. In this article, ...