(Answer requested by Kimberley Johnson) They sure can give different results, can’t they? But it’s not so much because the guts of the mikes are wildly different. Rather, it’s how they’re used. In a laptop, the microphones will pick up not only the intended sounds, but also vibrations from the hard drive and fan; plus…
Category: Hardware
“Does USB 3.2 Gen 1 support fast charging?”
(Answer requested by Rinki Singh) No. Normal USB 3.2 Gen 1 combined data/power sockets can deliver a maximum of 900mA at 5v, for 4.5w total. It’s not meant for use has a high-power charging port. (USB standards — Wikipedia) Separately, there are special-purpose USB PD (power-delivery) socket standards, and USB BC (battery-charging) socket standards; both…
“Can touching an LCD screen cause damage?”
(Answer requested by Ian Sandoval) Touching with what, and how hard? Even on screens that aren’t meant to be touched (e.g. not a touchscreen!) a simple tap or swipe with a fingertip, where the screen is not visibly deformed, won’t do any harm except maybe to leave behind a little skin oil. A harder touch…
Happy Birthday, Internet!
Permalink: https://langa.com/?p=3819
“What is the best way to store a 2000mAh cell phone battery for 1 to 2 years, charged or as it is packed?”
(Answer requested by Md-Abdur-Rahim) Store it the same way it probably arrived from the factory: with about a 30%-40% charge, which is the “sweet-spot” for long-term storage with minimal self-discharge for LI-ion batteries. Once charged to around 40%, carefully pack the battery in nonconductive material (e.g. a cardboard box), and then let it sit in…
“Why is my laptop battery draining fast, like from 100% to 10%, just in 20 minutes?”
(Answer requested by A.R.Talha) The answer depends on how old the battery is. By human analogy, think of the 100% effort that a 20 year old footballer can give compared to the 100% effort of a nursing home resident. It’s a full 100% effort in both cases, but the latter is less overall than the…
“How do I transfer data from a dead hard drive to a new hard drive?”
(Answer requested by Mridul Mohta) It depends on what killed the drive: An electrical problem? A mechanical problem? Pick up the (unpowered/fully off) drive and gently shake it. Is there loose stuff inside the housing? If you hear pieces rattling around, you may have broken one or more of the disc platters (disc platters are…
“Why do many serious typists prefer ‘clicky’ keyboards?”
(Answer requested by Terry Turner) It’s not the clicks, per se, but the positive tactile feedback that tells you that a key has been depressed enough to register the keystroke. On a well-made mechanical keyboard, all the keys will “break” their upward resistance with the same amount of pressure (i.e. they’ll generate the click and…
“I’m a producer on my way to college. How can I secure my laptop so it doesn’t get stolen, without screwing holes into my desk?”
(Answer requested by Dennis Willis) You’ll need a cable lock and either an adhesive anchor or a cable long enough to lasso itself after passing around or through an immovable object. A PC cable lock (examples) attaches to a security point built into most laptop bodies; the attachment point is connected to the laptop’s frame,…
“Why doesn’t my PC boot with more than 16GB of RAM?”
(Answer requested by “Weslo”) The three primary reasons for RAM limitations: There can be mathematical limitations: a 32-bit PC can only access about 4GB of RAM, because that — roughly 4 billion — is the highest you can count using 32 bits of data. A 32-bit operating system literally can’t “see” or access memory at…