technology insights

Recover lost online accounts

Michael Mansfield

Zero42 - Christchurch,Dorset June 20, 2022

Technology Blog

Stay in the know with insights from your local IT expert.

May 16, 2022

Retail Giants -v- Computer Manufacturers

Computer hardware is essential to the functioning of modern computing systems, from desktops to laptops to smartphones. However, despite the widespread demand for computer hardware, the margins on computer hardware are often very low. In this article, we will explore why the margins are so low on computer hardware and how stores like PC World make their profits from other sources.

April 3, 2022

Hexadecimal - The basics

Hexadecimal, often abbreviated as "hex," is a number system that is used by computers to represent and manipulate data. In this article, we will explain the concept of hexadecimal, how it works, and why it is so important to the development of computers.

A method for gaining assurance in the security of an IT system

Penetration testing is a core tool for analysing the security of IT systems, but it's not a magic bullet. This guidance will help you understand the proper commissioning and use of penetration tests. It will also help you to plan your routine security measures so that you gain maximum benefit from this powerful but expensive operation.

February 5, 2022

SSL & HTTPS the basics

When a user connects to a website using HTTPS, the website presents an SSL (Secure Sockets Layer) certificate. This certificate contains a public key that is used to encrypt data sent between the user’s web browser and the website’s server. This ensures that any data transmitted over the internet is secure and cannot be intercepted by unauthorized third parties.

A complex task fixed by simple maths

The Stable Marriage Problem is a classic problem in computer science and mathematics that has applications in various fields, from economics to social science. The problem involves finding a stable matching between two sets of objects, where each object has a preference for the objects in the other set. The Stable Marriage Problem was first proposed by David Gale and Lloyd Shapley in 1962, and it has since become a fundamental concept in the field of computer science.

December 20, 2021

Strowger and the electromechanical exchange that changed the world

The telephone system has been a cornerstone of modern communication for over a century, connecting people worldwide and facilitating the exchange of information and ideas. In this article, we will explore the history of the telephone system, focusing on the work of Almon Brown Strowger and the development of the electromechanical exchange.

November 2, 2021

VOIP - A very modern technique

Voice over IP (VoIP) is a communication technology that allows voice data to be transmitted over digital networks rather than traditional analogue telephone lines. In recent years, VoIP has become increasingly popular among businesses due to its lower costs and greater flexibility compared to conventional telephony. In this article, we will explore how VoIP works, its benefits for businesses, and the history of the technology.

The long the short and the curly's

In today’s digital world, businesses rely heavily on their network infrastructure for communication, data sharing, and information storage. Choosing the correct network cabling is critical to ensuring your business operations run smoothly and securely. In this article, we will explore the different types of network cabling available, including Cat5e, Cat6, fibre optic, and Wi-Fi, and discuss their pros and cons and how they can influence security in a small business environment.

September 15, 2021

Data Encryption - It all started with Julius Caesar in 58 BC

Encryption is the process of converting plaintext into ciphertext, which someone with the necessary key can only decode. It plays a crucial role in modern computing and is used to protect sensitive information from unauthorized access. In this article, we will explore the concept of encryption in more depth, including using prime numbers, one-time pads, the Caesar cypher, and its modern equivalents.

Not all heros wear capes

The field of computing has come a long way since the early days of computer science, and much of the development has been thanks to the contributions of some of the greatest minds in the field. In this article, we will explore the works of several individuals who have made significant contributions to modern computing, including Ada Lovelace, Charles Babbage, Hedy Lamarr, Bill Tutte, Tommy Flowers, Alan Turing, John Forbes Nash Jr., Tim Berners-Lee, Linus Torvalds, Aaron Swartz, and Edward Snowden. We will delve into the mathematical equations each of them solved and how their contributions have impacted modern computing.

Cyber Crime - A basic history

Online scams and fraud have become increasingly common in today’s digital age, and seniors can be particularly vulnerable. In the UK, seniors need to be aware of many different types of scams, including spam, phishing, bank statement scams, and tech support scams.

Thin Clients and the modern IT landscape

Your company’s data and infrastructure security are paramount in today’s rapidly evolving business environment. With the rise of cyber threats, businesses must ensure their network infrastructure is secure, reliable and up-to-date. One way to achieve this is through the use of thin client and zero client devices.

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