What algorithm did Windows XP use to choose your initial user picture?

(devblogs.microsoft.com)

97 points | by soheilpro 2 hours ago

8 comments

  • mawadev 1 hour ago
    That is a case I only become aware of when I read blogs like this. Technically I could solve it the same way, but these days you have so many tasks on your desk, you don't think about the problem and implications at all and that awareness/discipline is drowned in the noise/unlearned over time.

    If someone only gave me 2 minutes for this, because they think it is very simple (as always), I'd have done a count of files of a specific pattern in the directory and then picked a random index, very naive and quick and dirty programming, no sampling at all, just to avoid discussions why it takes so long with people who don't want to hear it.

    This reminds me of when I did a lot of C#, Java, JS, Python in my life, filling maps of strings and objects until I started with zig and noticed how expensive and complicated strings and data structure allocations can be. It kind of blew my mind how much memory and computation we waste when we try to get stuff done as fast as possible because of budget/time constraints.

  • lyorig 53 minutes ago
    Man, every post from Raymond Chen regarding Windows internals is like a little Xmas. I wonder whether he has to ask someone for permission before publishing this knowledge, though.
    • alex_suzuki 7 minutes ago
      I also wonder what his thoughts on “modern Windows” are
  • cgio 1 hour ago
    The times when people spent an extra brain cycle to avoid billions of second passes.
  • jasonvorhe 2 hours ago
    A couple of screenshots would've been useful for the post-millennial generations that never got to see the "beauty" (cough) of XP.
    • moritzwarhier 1 hour ago
      Here's a blog post from 2003 with beautiful pictures.

      https://jakeludington.com/2003/12/17/create_your_own_windows...

    • Maken 1 hour ago
      XP is Microsoft's prettiest OS by far.
      • mrweasel 1 hour ago
        That's a matter of taste, but for many it was the Windows they used first and/or spend the most time on and there's a lot of love for that reason alone. I never used XP all that much, but I always changed the theme to the Windows 2000 look. I really didn't like the default, it looked unprofessional and clunky in my eyes. Upon release XP was also pretty universally mocked as a Fisher Price-like UI.

        To me Windows 95/NT 4 is still the gold standard in Windows UI. It's certainly not the prettiest, that would be Windows 2000, but it was easy to use, easy to navigate and efficient with space.

        • agumonkey 15 minutes ago
          win2k was peak for me. lean, functional, just a pinch of glitter here and there (short fade-ins). it was on par with the amazing stability brought by nt5 kernel.

          i kinda miss xp at a cultural level since it was a bit the end of that computing culture cycle (after that apple started to dominate and ubuiquitous computing influenced desktop ui)

        • afzalive 52 minutes ago
          Took me years to like Windows XP. Hated the new start menu. I always kept installing Windows 2000 (or ME, probably because it could use Windows 98 drivers but look like Windows 2000).

          I eventually got used to it and ended up liking it.

          • stingraycharles 9 minutes ago
            It was at this moment I realized that people are talking about liking the non-classic-look XP. I always immediately put things in classic look, no grouped windows, etc.
          • alex_suzuki 6 minutes ago
            IIRC correctly, XP’s stability greatly increased after Service Pack 2 was published.
        • Maken 1 hour ago
          The first Windows I used was 98, and I sure didn't miss the blocky grey menus nor the pixelated icons. Maybe it was Fisher Price-ish but the new rounded buttons and borders were way more appealing to me.
        • TazeTSchnitzel 1 hour ago
          The "Windows Classic" look on XP is exceptionally ugly, because those 3D-rendered icons just do not belong on a Windows 2000-style grey background for menus or buttons. (I have recently had to test both these OSes in VMs…)
          • mrweasel 1 hour ago
            That is true, it looked completely off, as if no one really bothered to tests it and make it look nice. It got rid of the horrible window decoration of the default theme, but the start menu looked terrible.
      • delta_p_delta_x 39 minutes ago
        I feel Vista was by far the best. 7 simplified it a bit, but that Start orb and black taskbar on Vista, man, that was glorious.
      • YPPH 55 minutes ago
        I found each of 2000, XP, and 7 to be excellent in its own unique way. I'd be happy with any of them. But it also felt exciting to upgrade.

        It's all been downhill from there as far as UX goes.

      • meerita 10 minutes ago
        Ehem... nothing beats the beauty and simplicity of Win 95 :)
      • amiga-workbench 48 minutes ago
        Perhaps with the Zune theme installed.
      • sunaookami 1 hour ago
        You mean 7 ;)
        • medwards666 56 minutes ago
          Windows 7 was certainly pretty, but I still think that W2000 was peak Windows UI (and I've been around since Windows 2.0)
        • Maken 1 hour ago
          Windows 7 fixed Vista a bit, but the Aero windows were never pretty and the non-Aero decorations were painfully obvious a placeholder.
    • CalRobert 1 hour ago
      I thought it looked great :-/
    • PalmPilotProMax 1 hour ago
      I don't see how that's relevant? Article is about the RNG implementation, it doesn't matter what the profile pictures are.
      • lirolero 26 minutes ago
        > I don't see how that's relevant?

        nobody cares

  • KellyCriterion 41 minutes ago
    Why they made it that complex?

    A simple rand/mod based on first character of username should be sufficient?

    • lentil_soup 35 minutes ago
      because you don't know the number of images before running the code so no number to do the mod part
      • moffkalast 7 minutes ago
        Why wouldn't you know that? It's a set of preloaded stock photos, it's always gonna be the same number.
  • bombcar 1 hour ago
    Does it also check existing users so you don't match one?
  • bhaney 1 hour ago
    100 seems like a very unnecessarily low limit, even for the time
    • daveoc64 1 hour ago
      It's well above the number of images that were in the applicable folder by default, so seems pretty appropriate to me.
  • moritzwarhier 1 hour ago
    Some say the Admin account defaulted to a chessboard.

    I think it's true, but not sure if I'm just falling victim to false memories... help?

    • TazeTSchnitzel 1 hour ago
      The account named "Administrator" that Windows created for you always had the chess piece.
    • bhaney 1 hour ago
      There's no way my memory of this is reliable anymore, but I also remember my administrator account being chess pieces (and my user account being an orange fish).
    • bombcar 1 hour ago
      It might be that the randomization code was bypassed in some cases - like creating an account in safe boot mode or similar.
    • xx_ns 1 hour ago
      It makes sense. The chess piece is the first profile picture in the list.
    • abhinavk 1 hour ago
      I remember it like that too. Or is it Mandela effect?