YouTube Stories: The video platform now offers a Story function

In order to remain at the forefront of the social media world, even pioneers like YouTube must be guided by younger competition from time to time....

Selling online: the top English-speaking online marketplaces

You want to sell online – but where? If you don’t want to be entirely responsible for your own online shop, then you should offer your products on...

MOOC – the online education platform

MOOC opens the door to a new era of learning. Massive open online courses give everyone with internet access the opportunity to receive education at...

What is Chrome 68?

Early next month, Chrome 68 will be launched and the new browser will distrust all webpages that do not have HTTPS encryption as “not secure”. This is...

Why it is absolutely vital to register your .uk domain right now

Cybersquatting, typosquatting or legal battles over domain names – these are the potential risks of not taking advantage of the right to register your...

How are websites accessed?

In order to access a web page in a browser, you just have to enter the URL into the address bar in your web browser and the requested website will pop up on your screen. This seems simple enough, but the process that’s taking place in the background is a highly complex one. Learn about what happens when you access a website – from the URL translation to the relevant IP address via data transfer,...

Clearing your RAM: our step-by-step guide

Computers simplify our working life and everyday life in many ways. However, if they do not run as usual, they can become more of a hindrance than a help. The various possible causes of performance problems include excessive memory usage, which plays an important role in managing active processes. One possible solution is to clear the RAM, and thereby increase your RAM.

Edge Computing – Calculating at the edge of the network

Autonomous cars, intelligent factories and self-regulating supply networks – a dream world for large-scale data-driven projects that will make our lives easier. However, what the cloud model is and how it works is not enough to make these dreams a reality. The challenge of effectively capturing, evaluating and storing mass data requires new data processing concepts. With edge computing, IT...

SNMP (Simple Network Management Protocol): the protocol for network management

The communication protocol SNMP (Simple Network Management Protocol) is an elementary component of many network management applications. It defines a number of message types that greatly simplify the monitoring and administration of individual network participants such as PCs, routers, servers, switches, firewalls, or printers. How exactly the SNMP protocol works and what fundamental adjustments...

IGMP snooping: eavesdropping for multicast traffic

If a system in IP networks is to send data packets to different target hosts as efficiently as possible, an IP multicasting connection is the perfect solution. When it comes to multipoint transmission, the data packets are able to reach all interested parties thanks to various protocols such as GMP, for example. Switches and internet routers can also use the communication protocol for IGMP...

Simple network time protocol: the stripped-back protocol for time synchronization

An exact system time on a computer is especially important when devices need to exchange data. Cross-system processes quickly come to a standstill if the generated time stamps are very different from the time that applies to the system. Synchronisation methods that keep the clocks of the individual network participants in sync are utterly indispensable. One of the simplest methods to achieve time...

MAC address (media access control)

Without a MAC address, nothing in a network will work on your device. Just as your postman needs a valid address to reliably deliver the mail, the transmission of data packets in computer networks is only possible with the unique hardware address of the target device. When it comes to a MAC address, at least there is one address available on each network-compatible device. But what is the MAC...

IGMP: what is behind the Internet Group Management Protocol

Using multicast connections, data streams can be transferred to a large number of clients easily and in such a way that saves resources – provided that the accessing systems are part of the same multicast group. In IPv4 networks, the organisation and management of these groups is based on the Internet Group Management Protocol (IGMP), which was published as early as 1989. What exactly this...

Creating class diagrams with UML

Class diagrams are structural diagrams in the UML modeling language. The UML class diagram is suitable for visualising system elements and their dependencies for object-orientated programming languages. If you are a modeler creating a class diagram, it is advantageous to adhere to the official notation and semantics. This is the only way to avoid misunderstandings. We will explain notation for the...

Alternatives to Plex: an overview of the best available media centres

Plex is one of the most popular applications for organising your own multimedia collection on PCs, smartphones, and other devices, but there are a number of good alternatives that don’t have to hide behind the mainstream media centres when it comes to functionality and streaming quality. This article explains exactly what characterises software that manages and plays back audio, video, and image...