The Display and Fiber Optic Keyboard Lighting

The display on the PowerBook is one of its strong points. While it doesn't hold a candle to Apple's desktop Cinema Displays, it is quite strong as a notebook display. I'd say that the display on the PowerBook G4 is one of the best, if not the best, display which I've ever used on a notebook. The 15" display has a native resolution of 1280 x 854, which is what you can expect from just about any current generation 15.2" widescreen display.

Apple outfitted the Powerbook with ambient light sensors to control two things: the brightness of the display, and the fiber optic backlighting of the keyboard. The light sensors for the screen are located behind the grilles for the speakers, on the left and right of the keyboard.

Both features can be overridden, but their pros generally outweigh their cons. The best example of their use occurred while I was writing this very sentence on a flight over to Taiwan. Given the length of the flight, there are many times when the lights in the cabin are dimmed as well as brought back up again. I started writing while the cabin lights were dimmed, which caused the Powerbook's sensors to activate the keyboard lighting and dim the screen. About two hours before I landed, the cabin lights were turned up for breakfast service. Almost instantaneously when the lights went up, the brightness on the screen increased (to compensate for the higher ambient light) and the illumination on the keyboard turned off. The same types of features are useful for office environments when the lights are turned on after the end of a presentation, or in a school environment when the same occurs.

The fiber optic lighting on the keyboard is fairly impressive. Instead of being lit by a few LEDs causing bright spots on the keyboard, the face of each individual key is lit using a fiber optic network of lights. Only the letter or number on the key is illuminated; for example, the majority of the F key remains unlit, but the letter "F" itself is lit creating a very unique effect that is very well appreciated by someone who has to type in the dark a lot on airplanes.


We apologize for the blurriness of the image, but you get the point.


The fiber optic lighting isn't without its weaknesses; for starters, it does help contribute to the cost of the PowerBook, but that's not a huge issue.

You can control the degree of lighting by using the F8 - F10 keys on the keyboard. F8 will turn the keyboard lighting off, F9 will decrease the level of illumination and F10 will increase the level. Depending on how you have your keyboard settings configured, you may or may not have to hold down the "fn" key.

The Keyboard and Mouse OS X and Mobile Usability (and Performance)
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  • jsares - Tuesday, January 25, 2005 - link

    Here's what I wrote on my blog:

    http://macmini.blogspot.com

    Anand Lal Shimpi of AnandTech has a great second article about his experiences with switching to the Mac.

    If you could say he liked the Mac in his first article you could say he loves the Mac in this article.

    Some great quotes and my comments in italics:

    "It took a lot of convincing (as well as some executive privilege) for the establishment of the Mac section, and then came the ... article "
    Some of Anand staff didn't want him to write about the Mac.

    "Within the first three days of publication, that little Mac article skyrocketed to becoming one of the all-time most popular articles ever published on AnandTech."
    Windows enthusiasts are dying for something new.

    "One problem with these types of articles is that they inevitably take much longer to put together, simply because there are no structured tests to run and analyze."
    That's why this article is so good."

    "At the end of the first Mac article, I came to the realization that what attracted me most to OS X was the way everything just worked the way that you'd expect it to."
    Welcome to the Mac, Anand.

    I don't want to give away too much so go read the article and give the guy some credit in the comments section and send him some nice emails.

    Great article Anand!
  • CrankyTodd - Tuesday, January 25, 2005 - link

    Hi Anand,

    Regarding Expose, especially on a laptop, you'll find yourself enjoying Expose MUCH, MUCH more if you dont use the function keys to launch it.

    Under System Preferences, choose Expose, and use "Active Screen Corners" to activate Expose functions. I was reluctant to try it at first, but I was hooked within minutes, and cant imagine going back. I Set the lower left corner of the desktop to activate the "Application Windows" function, and the upper right corner of the desktop to activate the "All Windows" function. So as I'm using my Mac, as soon as I want to switch applications or windows within the current application, I just throw my mouse into one corner or the other, instead of having to actually go hit a button to activate either function. Once you try it, you'll see that its an incredible seamless way of navigating the system.
  • ugly - Tuesday, January 25, 2005 - link

    "OS X Tiger
    ...as well as the fact that in Tiger, every single pixel on the screen will ac-tually be rendered by the graphics card."

    I thought some image "things" (I couldn't come up with a better word for what was in the core image demo) could be offloaded to the graphics card, but this statement makes it sound as if Tiger will be Quartz Extreme like it should have been.

  • Dualboy24 - Tuesday, January 25, 2005 - link

    I loved the article. I was waiting for a new Mac read at anandtech. It seems like ages since the first one... I recently made a jump to a Mac Powerbook 17" a few months before the first article. The funny thing is I build/sell PCs on the side... but my main system is now the mac and of course I have 5 PCs running every MS-Linux but I must say that the Mac OS is the most advanced OS in terms of interface and it seems multitasking. Expose is a wonderful feature (I use an MX500 mouse with the exposes features mapped)

    Oh. Also you shouldn't forget the system wide spell checker. Such common sense I wonder if MS does not include this in windows in order to push some of their other products?

    Anyway looking forward to the Mac mini review I am probably going to get one for the low noise and power factor.
  • miniMUNCH - Monday, January 24, 2005 - link

    I 2nd the 5400 rpm HD for an extra $45...well worth it. Or you can upgrade the HD yourself or have MAc Shop throw in a 7200rpm HD, but for me the 5400 rpm HD is plenty.
  • wilburpan - Monday, January 24, 2005 - link

    Oops. What I meant to say was:

    Being a user of OS X, Linux, and Windows, I would say that the often cited lack of a two button mouse in OS X is not so much a flaw as it is a preference. Personally, I can move from the one button mouse in OS X to the two button mice of Linux and Windows and back again without much trouble. To complicate things further, two button mouse behavior is different in Windows and Linux. One can get right-click type behavior in many OS X applications by control-clicking the mouse, which does not seem to slow me at all compared to right-clicking.

    Until someone can produce data or a usability study that shows that, say, editing an image in Photoshop is slower using a one button mouse than a two button mouse, this is all a matter of what one is used to. You might as well criticize a scroll mouse for the tendency for middle clicks to be interpreted as scrolling commands, or harp on the inconsistencies of menu shortcuts and menu item locations (e.g. does Preferences belong under Edit or Tools?) between applications.
  • pkthoo - Monday, January 24, 2005 - link

    Great article!
    I consider myself as a neutral. This article sheds light on what I have been looking for; user experiences on using Mac.
    Now, I am certain that I am going to be Mac+iPod user, hopefully by year's end.

    Apple should make 512MB as minimum RAM amount, and bundle Mac mini with iPod Shuffle as a new 'wholesome' package.
  • wilburpan - Monday, January 24, 2005 - link

  • Snoozy - Monday, January 24, 2005 - link

    I still think you are missing out on the complete mac experience by not using a launcher application.

    I run Butler (http://www.petermaurer.de/nasi.php?thema=butler&am... but there are many more: LaunchBar (http://www.obdev.at/products/launchbar/index.html)... QS as mentioned earlier, just do a search on versiontracker.com.

    What these applications enable you to do is virtualy elimate the need for CMD+tab switching, using the dock, or using the Applications folder to launch things. Basically press CMD + Space (as I have it setup, you can go with whatever key combo you want!) and then type what you want - you can even teach them anacronyms for commonly used applications. For example if I do CMD+Space then type PS and hit enter it opens photoshop, or switches to it if its already open. The applications are infinitely configurable, I've got a shortcut for blog which runs an apple script that then pops open MarsEdit and opens a new post window for my blog (which is WordPress powered, MarsEdit contacts it via XML-RPC). Butler also has a built in dictonary, and multiple other widgets. Check it out.

    I 2nd the suggestion on using sidetrack. I bought my PB (1st mac) in march last year and this was one of the first things that I had to have - makes it so much nicer.
  • hopejr - Monday, January 24, 2005 - link

    #23, On OS X there is the Zoom thing in the Universal Access Pref panel, that allows everything on the screen to be zoomed at what ever zoom level is necessary. You can set it to follow the mouse, or keyboard focus. It's a nice feature. There's other good features in OS X that help with those who can't see too well.
    #28, I just tried that and you're right, it does (I tried in 2k3). Oh well, I use OS X more so it's more important to me there :P (although it's nice to know it works in Windows too, for the times I use it)

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