“Why does a dead laptop revive after putting it in the freezer?”

(Answer requested by Edgar Ferrer) Yikes! If this actually worked on your laptop, you’re very lucky. The actual, true “put it in the fridge” advice is very old-school, and is/was a nothing-left-to-lose, last-ditch recovery option for malfunctioning spinning-platter hard drives. Deep-chilling a mechanical drive could sometimes free up stuck internal parts, via differential contraction/expansion of…

“Why do laptops take so long to reset to factory settings, compared to smartphones?”

(Answer requested by Trevor Noble) Why does it take so long to paint a house compared to a garden shed? 🙂 Laptops are typically much more capacious than phones, and carry far more software and files. EG: My phone (an S10) has 128GB of internal drive storage, with 75GB currently in use (filled with files…

“Is a 256mb cache HDD significantly faster than a 64mb cache HDD?”

(Answer requested by Gabriel Yeung) You want the technical answer, or the practical answer? Technically speaking, if your average working dataset is larger than 64MB, then YES, a HDD (hard drive) with a larger internal electronic cache (aka “buffer”) will probably perform better than the same drive with a smaller cache because the cache can…

“Is there any possibility to recover data from a 256-bit encrypted NAS HDD?”

(Answer requested by ZeeForce Gaming) Encrypted files are still just 1s and 0s. So, if you’re talking about recovering encrypted files after a crash, hardware failure, or something similar, you may be able to lift the encrypted bits off the defective drive using utterly normal data/disk-recovery software, and write the still-encrypted data to a working…

“Say I’m charging my phone and drop it in my bath while it’s connected, will I possibly die and/or will the phone be damaged?”

(Answer requested by Oskar Jackowiak) His full question: “Say I’m charging my Galaxy S10 with my portable powerbank, if I was to drop the phone whilst connected into water will I possibly die and/or will the phone be damaged?” I’d be more worried about the powerbank than the phone, or you. Top-brand phones have been…

“Does a USB hub add latency to mice and keyboards (e.g., does a USB hub affect gaming)?”

Those are really two different questions. “Does a USB hub add latency?” Yes. A USB hub isn’t passive wiring: It receives a signal from a source (PC or peripheral), decodes the embedded address information, and then actively retransmits that signal to its destination (peripheral or PC). That process takes a small, but measurable amount of…

“How can I repair a power bank that is not charging a mobile phone?”

(Answer requested by Tiamiy Olawale) If you’re sure it’s the power bank (external battery pack) that’s the problem (i.e. if the phone charges normally from other sources), here’s what to do: Take the defective power bank to a lithium-ion device recycling center or receptacle. Leave it there. Buy a new power bank. (Sorry. There’s no…

“Will a device charge at the same rate with a 10 meter cable as with a one meter cable?”

(Answer requested by Rosario Mezzatesta) If the cables are designed properly, yes. However, if either cable’s internal conductors are too thin, energy will be lost as resistive heat along the way; this can make the charging time longer. And: The longer the wire, the greater the thin-wire-resistance effect. Very long power cables need substantially thicker…

“Does exposing my phone to cold weather damage battery, and if so, is the damage permanent?”

(Answer requested by Dan Hopper) Chilly temps (below room temp, but above freezing) will temporarily reduce the amount of power available from a given battery charge, but won’t permanently hurt anything. Freezing cold may render a phone completely, but temporarily, inert. However attempting to recharge a below-freezing battery can cause permanent damage. Extreme cold by…

“How much did your first laptop/portable computer weigh?”

(Answer requested by Ian Alter) Probably less than you think. My first notebook was a TRS-100 Model 100, weighing in at about 1.4 kilograms (3.1 lb), including its power supply — four ordinary, buy-anywhere, AA cells.) I carried my Model 100 literally around the world, back in the day. 🙂 Permalink: https://langa.com/?p=3865