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How to use mission control on Mac

How to Use Mission Control and Multiple Desktops on a Mac

If you regularly lose windows behind other windows, Mission Control is for you. It shows everything that’s open in one view, and it lets you

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How to copy and paste on Mac

How to Copy and Paste on a Mac (Including the Tricks Most People Miss)

Copy and paste works a little differently on a Mac than on Windows. The main change is that you use the Command (⌘) key where

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How to zip and unzip files on Mac

How to Zip and Unzip Files on a Mac

Zip files bundle several files into one smaller file. They’re ideal for emailing a batch of photos or sending a whole folder in one go.

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Arduino UNO Q: Linux + Real-Time in One UNO

Arduino UNO Q: Linux + Real-Time in One UNO

A Qualcomm Linux computer and an STM32 microcontroller share the classic UNO footprint Arduino UNO Q has two “brains” The Arduino UNO Q is the

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Excalidraw: A free, open-source whiteboard for sketchy, friendly diagrams

Excalidraw: The Free Online Whiteboard for Quick, Beautiful Diagrams

Most diagram tools want you to get every line perfect. Excalidraw goes the other way. Everything looks hand-sketched, so you think about the idea rather

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How to right click on a Mac

How to Right-Click on a Mac (Trackpad, Mouse and Keyboard)

Macs don’t have a separate right-click button, which confuses almost everyone at first. But right-clicking — Apple calls it a secondary click — is fully

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Wi-Fi Keeps Dropping or Internet Is Slow? A Step-by-Step Fix

Buffering videos, frozen video calls and pages that won’t load: connection problems affect everything you do online. The trick is to work out where the

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How to freeze panes in Excel

How to Freeze Panes in Excel (Rows, Columns or Both)

Scroll down a long spreadsheet and your column headings disappear off the top of the screen. Suddenly you can’t remember which column is “Invoice Date”

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ShareX: A free, open-source tool for screenshots, GIFs and screen recording

ShareX: The Best Free Screenshot and Screen Recorder for Windows

ShareX is a free, open-source screenshot and screen recording app for Windows with scrolling capture, GIFs, OCR and annotation. Here’s how to set it up properly.

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12 More iPhone Tricks You Didn't Know You Had (Step-by-Step Guides)

Maccy: Free Clipboard History for Mac (Never Lose What You Copied)

Maccy is a lightweight, open-source clipboard manager for Mac. It remembers everything you copy so you can search and paste it again. Here’s how to set it up.

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Home NAS own your cloud

Own Your Cloud: The Rise of Home NAS Storage

Most of us now pay a monthly fee to store our photos and files in the cloud, whether it’s iCloud, Google One, OneDrive or Dropbox.

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RCS encrypted messaging on Android and iPhone

iPhone–Android Texts Are Now Encrypted: RCS Messaging Explained

For years, texting between an iPhone and an Android phone meant falling back to old-fashioned SMS: blurry photos, no typing indicators and no privacy. That’s

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Contactless limit removed UK

The £100 Contactless Limit Has Gone: What It Means for Your Cards

Contactless payments started with a £10 limit in 2007. It rose to £20, £30, £45 and then £100. In March 2026, the rule changed completely:

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Phone batteries are getting much bigger

Phone Batteries Are Getting Much Bigger: Silicon-Carbon Explained

For years, phone battery life barely improved. Screens got brighter and processors faster, but most phones still needed charging every night. That’s finally changing, thanks

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HMRC Self Assessment Scams

Tax Return Due? So Are the Scammers: HMRC Scams to Watch For

If you’re self-employed, a landlord or have other untaxed income, you’ll know the date: 31 January, the deadline to file your Self Assessment tax return

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Microsoft Office End of Support

Is Your Microsoft Office Still Safe? Older Versions Are Out of Support

Everyone’s heard that Windows 10 has reached the end of the road. Fewer people know that the same thing has happened to older versions of

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Wi-Fi 8 is coming

Wi-Fi 8 Is Coming. Should You Wait for It?

Wi-Fi 7 has only just gone mainstream, and the industry is already talking about Wi-Fi 8. If you’re thinking about a new router, should you

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Landline Switch off final checklist

Landline Switch-Off: Four Weeks to Go. Your Final Checklist

The UK’s old copper telephone network, the PSTN, switches off on 31 January 2027. Most homes and businesses have already been moved to a digital

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2026 Tech year in review

2026 in Tech: The Year in Review

It’s been a busy year. Some of 2026’s tech changes made headlines, and others quietly changed how we use our phones, computers and home broadband.

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New Year Digital Declutter

Your New Year Digital Declutter: A Tidier, Safer Setup in an Afternoon

The quiet days between Christmas and New Year are perfect for a job most of us put off all year: tidying up our digital lives.

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John The Computer Man

John Crowhurst Proprietor t/a John the Computer Man
18 Cavendish Avenue
St Leonards on Sea TN38 0NR

Where I cover: 20 mile radius from Hastings (St Leonards, Battle, Bexhill, Rye, Eastbourne)

Hours: 9:00am – 5:00pm

Hourly rate: £60 per hour

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