• 1 Post
  • 18 Comments
Joined 4 years ago
cake
Cake day: January 18th, 2021

help-circle







  • snowfalldreamland@lemmy.mltoTechnology@lemmy.world*Permanently Deleted*
    link
    fedilink
    English
    arrow-up
    5
    ·
    edit-2
    11 months ago

    It might sound surprising but it makes a lot of sense to have different standards supported over USB-C. USB-C is just a form factor of the connector.

    For USB 3 or USB4 speeds you physically need more wires in the cable, while for USB 2.0 you only need 5 wires. Also if you want really high data transfer rates of 40 or 80Gbit/s the cable can only be around 1 meter or 3 feet long.

    So because USB-C supports different USB versions, a charging cable can simply be USB 2.0 and be cheaper and long and do it’s job just fine.

    If USB-C was only USB4 it wouldn’t be all that useful. Devices like wireless mice or DACs or game controllers wouldn’t/ couldn’t use it and the cables would all be thick and expensive and short. And for charging regular things we’d still be stuck with micro USB.

    The only downside is that, yes if you are doing a thing where you need high speeds such as connecting a screen or external disk to a PC you do need to check that you’re using a high speed cable, but pretty much all good quality fast cables have the speed printed onto the connector housing.

    But yes the iPhone restricting speeds to 2.0 is strange and most definitely just a trick to sell more pro models. There are plenty of devices that simply have no need for anything besides 2.0, be it because they send no data or just very little. But phones really aren’t in that category.






  • Tipp for people wanting to get into rechargeable AA and AAAs: get IKEA Ladda batteries and their charger. They are cheap and japanese made. Some people argue that they are just relabeled Panasonic eneloops!

    Edit: Oh also if you used rechargeable batteries in the past and you remember them sucking that’s probably true. But the battery chemistry is better now and it’s possible that your batteries degraded quickly because of “dumb” chargers. Modern chargers like the gray 4 battery Ikea charger detect how and for how long to charge and thus will not ruin the batteries.



  • I think the explanation was needed. Even if one knows about interrupts, it’s easy to misunderstand the meme. For example i thought it was a joke about a person writing assembly and being used to 32 bit code and thus mistyping %rax as %eax, and I’ve seen another comment here referencing “muscle memory”. (Obviously the interrupt interpretation makes way more sense and it’s funnier)





  • Yes being Hot-Swap was very important to me. All the ducky one 3’s are hot-swappable right? I have some older mechanical keyboards but they are not hot swap. For example i have one with red switches and It’s really not bad at all but I just don’t use it because i don’t love the switches. If it was hot-swap i could just try out some new switches on it instead of buying a new board.

    Thanks for your advice! I always like to double check that I’m not buying a brand that is generally regarded as poor quality or something.