Knowledge Hub
Read our latest articles about digitalization, IoT, Cloud and Cybersecurity.
APN (Access Point Name) and its importance for mobile device data connections
Discover how Access Point Names (APNs) serve as crucial gateways between mobile devices and the internet, ensuring seamless data connectivity. This article delves into the structure and significance of APNs, highlighting their role in reliable mobile network communication.
13.08.2026
What is TCP/IP?
Dive into the world of TCP/IP, the fundamental protocol that powers internet communication. This article explains how TCP/IP works, its key components, and why it remains essential for modern networking and digital communication.
13.08.2026
IMSI: The central subscriber identification explained
The IMSI number uniquely identifies mobile subscribers within a network and is essential for secure communication in mobile services and IoT applications. This article covers its function and key security aspects.
13.08.2026
SIM card sizes explained: Mini, Micro, Nano & eSIM
Explore the evolution of SIM cards—from full-size and Mini SIMs to the modern Nano SIM and eSIM—understand their differences in format, dimensions, and functionality for today’s devices.
13.08.2026
IoT Protocols: A comprehensive guide for enterprises
In this comprehensive guide, we explore the key IoT protocols that enable seamless communication between devices. Learn about the various protocols, their functions, and how they play a crucial role in ensuring efficient and secure IoT networks.
13.08.2026
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Further Articles
Standard SIM: Origin, usage & significance explained
From its origin as a credit-card-sized breakthrough in the early days of GSM to its niche survival in industrial systems, discover why the standard SIM still matters in our digital world.
01.10.2025
Mini SIM: The former standard format for SIM cards
Though largely phased out in modern smartphones, the mini SIM still plays a key role in routers, industrial systems, and IoT setups — learn how it compares to newer formats and where it remains indispensable.
03.10.2025
Micro SIM (3FF): Compact format with continued relevance
Learn everything about the Micro-SIM (15 × 12 mm): how it works, where it's used, and how it compares with other SIM formats in modern devices.
03.10.2025
What is a Nano SIM? All about the smallest SIM card format
Discover the role and technology behind the Nano SIM — the smallest physical SIM format used in modern devices — and what the future holds with eSIM and iSIM.
14.10.2025
Logistics 4.0: New momentum for the supply chain
Logistics 4.0 refers to the digital transformation of supply chains through technologies like IoT, AI, and cloud computing to connect processes, resources, and stakeholders in real time, enhancing efficiency, transparency, and automation across logistics operations.
28.01.2026