The most reliable way to block a website depends on how wide you want the block to reach. To block a site on one person’s phone or computer, use the controls built into that device. To block it for everyone in the house, block it at the router, which covers every device on your home…
If your laptop takes forever to start, stutters when you open programs, or freezes under a handful of browser tabs, the fastest safe fix is usually this: restart it properly, then clear out what is quietly piling up — startup programs, a nearly full drive, and browser clutter. Most slow laptops are not dying; they…
A CRC error means your computer tried to read data from a drive, disc, or file, checked that data against a built-in verification value, and found a mismatch — so it stopped instead of copying something corrupted. CRC stands for Cyclic Redundancy Check, a maths-based check computers use to confirm that data was read or…
Robotics is the field of designing, building, and using robots — machines that can sense their surroundings, decide what to do, and carry out physical actions, such as moving, lifting, sorting, or cleaning. It brings together mechanical engineering (the body), electronics and sensors (the senses), and computer software (the control and decisions) in a single…
If your WiFi is slow or keeps dropping in parts of your home, the most likely cause is not your internet plan — it is where the signal has to travel. WiFi is radio, and radio weakens with distance, walls, floors, and interference from other electronics. The good news is that most homes can improve…
A cookie on a website is a small text file that the site asks your browser to store on your computer or phone. It holds a little piece of information about you and your visit — nothing more exotic than that. The next time you return to the site, your browser sends it back, and…
Deep learning is a way of teaching computers to recognise patterns by showing them very large numbers of examples. Instead of a programmer writing out rules for every situation, the system studies examples — photos, recordings, sentences — and gradually works out the patterns for itself. It is the technology behind most of the impressive…
When a printer shows as offline, it usually does not mean the printer is broken or even switched off. It means your computer has lost contact with it — the connection between the two has failed, the print queue is stuck, or a setting is telling the computer to treat the printer as unavailable. The…
Two-factor authentication and two-step verification both add an extra check when you sign in, on top of your password. The difference is in what kind of extra check each one uses. Two-step verification asks for two steps, but both steps can be the same kind of proof. Two-factor authentication asks for two different kinds of…
A smart TV is a television that connects to the internet and runs apps, much like a smartphone does. Instead of only showing channels from an aerial, cable, or satellite box, a set can stream films and shows from services like Netflix and YouTube, browse the web, mirror your phone’s screen, and in many homes…
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