What is Blockchain Technology and How Does it Work?

Tanya Wetson-Catt • 24 February 2025

Blockchain technology is changing the world. It is a system designed to keep records safe and secure. But how does it work? Let’s find out more about this amazing technology.


What is Blockchain?


Blockchain is some kind of digital ledger. In it, information is stored in a manner that makes it hard to change. This ledger is shared among many computers, each one having a copy of the same ledger.


Information is kept within blocks. Each block maintains a list of transactions. As the block gets filled, it connects to the previous block, forming a linked chain of blocks or a blockchain.


How Does Blockchain Work?


Blockchain works by mining. Miners are computers that solve complex math problems. Once they solve these problems, they add new blocks to the chain.


Each block has a unique code called a hash. This hash helps keep the information secure. If anyone tries to change the information, the hash also changes. That way, it’s easy to spot any tampering.


Why is Blockchain Secure?


The blockchain is secure because it is made using cryptography. Cryptography is like a secret code used to protect information. Only the ones who have the right key will be able to read it.


Besides, blockchain is decentralised. That means no one controls it. Several computers are working together to keep it safe.


What Are the Uses of Blockchain?


Many other uses of blockchain exist beyond money. It can track goods in a supply chain, store medical records safely, and even help with voting in elections.


In finance, blockchain powers cryptocurrencies such as Bitcoin. These are digital currencies that people can use online.


How Does Blockchain Impact Our Lives?


Blockchain makes transactions faster and cheaper. It removes the need for middlemen like banks. This saves time and money.


It also introduces transparency. Users can view all the transactions made on the blockchain. These actions help to establish trust among users.


What Are the Challenges of Blockchain?


There are challenges regarding the use of blockchain. Much of the mining is power-consuming. This might not be suitable for the environment.


Besides these issues, there are even more regulatory ones. Governments and agencies don’t yet know how to deal with blockchain technology.


What’s Ahead for Blockchain?


The future of blockchain is very bright. More and more industries are exploring its potential each day. From healthcare to entertainment, blockchain may change the way we do things.


Developers are also working on making blockchain more efficient and eco-friendly.


Want to Learn More About Blockchain?


Blockchain technology is interesting and full of potential. It can change many aspects of our lives for the better.



Contact us to learn more about how blockchain can benefit your business or personal projects.  

Let's Talk Tech

More from our blog

by Tanya Wetson-Catt 10 March 2025
Our devices are a big part of our daily lives: work, fun, and staying in touch. Still, sometimes they make us less productive. In this article, you will learn how to organise your device. You’ll learn ways to boost your productivity and get more done. Why is device organisation important? Messy devices slow us down and make it tough to find what we need. An organised device makes for a faster, much more productive experience. It also reduces stress and preserves time. How does clutter impact productivity? Clutter on devices adversely influences productivity. It forces you to waste precious time searching through files. It could make computers run slower, too, building frustration and making less work being done. What are the benefits of organised devices? There are several benefits when using organised devices. They help us find things quickly, work efficiently, feel less stressed, and have more free time. Now let’s look into 8 ways how to organise your device for better productivity. 1. How can you declutter your home screen? Remove unused apps Look at your home screen. Remove the applications you never use. This makes it easier to find the ones you need. Group similar apps Gather similar apps into folders. This keeps your home screen neat and clean. You can find applications much quicker this way. Use a minimalist wallpaper Use a simple wallpaper. This helps you focus on your apps and tasks. 2. How do you organised your files and folders? Set up a Logical Folders Set up file types in folders. Label them appropriately. This would make access easier and faster. Naming your files descriptively Clearly label the name of the file. Attach dates or names of projects for easy location of files. House clean now and then Trash the old and irrelevant files. Get some space cleared out to reduce clutter. 3. How could you organise your email? Create Folders and Labels Create folders for emails of different kinds. Label them and categorise them accordingly. This helps to keep your inbox organised. Unsubscribe to Unwanted Emails Remove your name from email lists you never read. This cleans up your inbox. Use the Two-Minute Rule If an email can be handled within two minutes, then handle it immediately. This helps you avoid the piling up of small tasks. 4. How Can You Optimise Your Browser? Organise Bookmarks Sort your bookmarks into folders. Delete ones you don’t use. This makes finding websites easier. Use browser extensions wisely Only keep extensions you use often. Too many can slow down your browser. Clear your cache regularly This helps your browser run faster. It also frees up space on your device. 5. What are good ways to manage passwords? Use a password manager This tool securely vaults all your passwords. You only have to remember one master password. Generate strong, unique passwords Use a different password for every account. Make them long and complicated. This will keep your accounts secure. Enable two-factor authentication This adds an extra layer of protection to your accounts. It makes them harder to break into. 6. How can you streamline your notifications? Turn off unnecessary notifications Only retain notifications from important apps. This decreases distractions. Set specific times to check notifications Don’t view notifications throughout the day. Decide on certain times of the day to view notifications. In this way, you will be able to concentrate on your work. Use ‘Do Not Disturb’ mode Switch this on when you really need to focus on something. This blocks all your notifications for a certain period. 7. What is the best type of data backup? Utilise cloud storage Store important files in the cloud. This keeps them safe and easy to access. Set up automatic backups Make your device backup files on a regular basis. This ensures you don’t lose important data. Keep multiple copies of important files Store critical files in more than one location. This protects against data loss. 8. How can you maintain your device’s health? Update software regularly Keep your applications and operating system updated. This will enhance the performance and security. Run virus scans regularly Run virus scans using antivirus software to check for threats. This will keep your device safe from any kind of threat. Clean your device physically Dust and dirt can slow down your device. Cleaning it regularly will help in keeping it in good shape. It takes some time and effort to organise your devices, but it is really worth the investment. You’ll be more productive and less stressed. Try at least one from this list and then, once you get comfortable, try some more.  Remember, everybody has different needs, so do what will work best for you . If you need help organising your devices, feel free to reach out to us. Contact us now for personalised advice on boosting productivity .
by Tanya Wetson-Catt 3 March 2025
AI is going to change how we work. It can make some tasks easier. But it can also cause problems. Let’s look at some ways AI can make work tricky. What is AI and how does it affect work? AI stands for Artificial Intelligence. The computer systems are actually able to do the things that normal and regular human intelligence can do . It can support so many jobs. It can write, analyse data, and can even create art. But it is not perfect-it also can go wrong. Where can AI go wrong? Incorrect Information AI sometimes provides wrong information. It may mix up facts or use data that is too old. This can cause huge problems in the workplace. Weird outputs AI can also make strange mistakes. It may write utter nonsense or create odd images. This can be a waste of time and cause confusion. Can AI be biased? Yes, AI can be biased . It learns from data given to it by humans. If that data has bias in it, then the AI will too. This can lead to unfair decisions in the workplace. How does AI affect jobs? Job loss Some people fear that AI will steal their jobs. It can perform certain tasks more quickly and for less money than humans. This could result in fewer jobs in some industries. New skills needed AI also needs workers to acquire new skills. Workers need to learn to work with AI, which can be challenging for some workers. Is AI always reliable? No, AI is not always reliable. It can malfunction or break down. This causes a big problem if the workers are dependent on it and it fails. How does AI affect teamwork? AI can alter how teams work. Certain tasks become solo work with AI. This may decrease teamwork and creativity. What about privacy and AI? AI requires a lot of data to function properly, which can raise several privacy concerns. Workers may be concerned that AI will view their personal information or work habits. Yes, AI can create legal issues. There are questions about who owns work created by AI. There are also concerns about AI making biased decisions. How can we use AI safely at work? To use AI safely at work: Check AI outputs carefully Keep humans in charge of big decisions Train workers to use AI well Have clear rules for AI use Stay up-to-date on AI laws Get Started With AI at Work AI can be helpful at work, but it’s not perfect. We have to use it with care. If you have questions about using AI at your job, contact us today. We can help you use AI in a smart and safe way.
by Tanya Wetson-Catt 21 February 2025
These days, everything is digital. We deal with data every day: from personal photos to work files that hold a lot of value. What happens if you lose that? Well, this is the reason behind doing secure backups of data. Let’s go through some best practices to keep your data safe and secure. What is Data Backup? Data backup refers to the creation of a copy of your data. The copy can be used in the event of loss or destruction of the original data. Backups can be stored on various devices, such as external hard drives, or in the cloud. Having a backup ensures you don’t lose important information. Why Is Secure Backup Important? Backing up will save your data from being lost forever. Sometimes computers crash, or get viruses. Other times, you may delete some important files accidentally. If you do not have a backup, then you could lose everything. Backing up your data keeps it safe from these problems. How Often Should You Back Up Your Data? Backing up your data is very important and should be done regularly. Some people back up their data every day, while others do it on a weekly basis. It depends on how often your data changes. If you have important files that change daily, then you should back them up every day. Regular backups mean you will always have the latest version of your files. What Are The Different Types of Backups? There are several types of backups you can use: Full Backup A full backup copies all your data. It takes more time and space but is very thorough. Incremental Backup An incremental backup only copies new or changed files since the last backup. It saves time and space. Differential Backup A differential backup copies all changes made since the last full backup. It’s faster than a full backup but takes more space than an incremental one. Where to Store Your Backups? The place of storage for your backups is an important consideration: External Hard Drives These are physical devices you can store at home or at work. It’s convenient, but they can get lost or damaged. Cloud Storage It keeps your backups online, so it is safe from any form of physical damage. It’s also easily accessible from any location. Offsite Storage Offsite storage means keeping backups in a different location than your main data. This protects against theft or natural disasters. How Can You Ensure Your Backups Are Secure? Keeping your backups secure is as important as making them: Use Encryption Encryption scrambles your data so only you can read it. This keeps it safe from hackers. Set Strong Passwords Use strong passwords for all your backup accounts and devices. This prevents unauthorised access. Regularly Test Your Backups Testing ensures that your backups work properly. Try restoring a file to make sure everything is correct. What Tools Can Help With Data Backup? Many tools can help automate and manage backups: Backup Software Backup software can schedule and perform backups automatically. This makes it easier to keep up with regular backups. Cloud Services Many cloud services include automatic backups in their package. They provide extra security features too. What Should You Avoid In Data Backup? Here are some of the common mistakes to avoid while backing up your data: Not Having Multiple Copies Always have more than one copy of your backup in different places. Ignoring Security Updates Keep all backup software and devices updated to protect against new threats. How Can You Make A Backup Plan? Creating a backup plan helps you get organised by: Determining what data should be backed up. Frequency of backups. Where the backups will be located. Reminders to test regularly. Take Action To Protect Your Data Today! Don’t wait until it’s too late to protect your data. Start backing up today! Secure your important files by following these best practices for data backup. If you need help setting up a secure backup system, contact us today!
Share by: