Showing archive results for 2005

Icons are all multiples of eight pixels in width. It's not just because computer people like powers of two. Back in the early days of Windows, video cards were monochrome or, if you were lucky, 16-color. These were all planar video modes, the mechanics of which were discussed earlier. Now imagine copying a bitmap to the screen where both the bit...

The Tablet PC team have a tough task ahead of them at this year's PDC: They have to get people to care about power management. The reason why this is tough is that power management is rarely a deal-maker. If a user is evaluating, say, personal finance software, how much weight are they going to place on which program consumes less battery ...

One of our researchers IM'd me yesterday to let me know that someone she interviewed mentioned that some people suspected that I wasn't real because most of my posts are published at the same time every day. I dunno. The evening news comes on at the same time every day, but I'm pretty sure they're real. Maybe I should be more suspicious. If I ...

Everybody's lunchtime conversation a few days ago was the riot at a used laptop sale in Richmond, VA. [Local coverage.] What got me was this fellow Jesse Sandler: "I took my chair here and I threw it over my shoulder and I went, 'Bam,'" the 20-year-old said nonchalantly, his eyes glued to the screen of his new iBook, as he tapped away on the ke...

Thirteen. In case you were wondering. And those were thirteen of those special Distribution Media Format floppies, which are specially formatted to hold more data than a normal 1.44MB floppy disc. The high-capacity floppies reduced the floppy count by two, which resulted in a tremendous savings in cost of manufacturing and shipping. (I'm su...

Everybody is going nuts over a patent decision regarding the iPod interface, but that's not what I'm writing about (so don't ask me for my opinion). Rather, I'm reacting to the claims being made by many people that Apple will have to pay Microsoft $10 for every iPod. What I want to know is where this amount "$10" came from. Multiple people a...

Changing the ownership of an object (typically a file) is not difficult in principle: You call the function with the new security descriptor. The hard part is getting to that point. (Thanks to John, a colleague in security, for correcting an earlier draft of this entry.) If you have access on an object, then you can change the owner of the...

I will be heading down to Los Angeles the Friday before the PDC in order to visit friends and relatives and to check out the King Tut exhibit at the Los Angeles County Museum of Art. The last time Tutankhamun came to the United States was back in the late 1970's. I was an elementary school student and a few of my classmates were lucky enough to h...

Consider why a typical program launches child processes. (Shell programs like Explorer aren't typical.) It's because the task at hand is being broken down into sub-tasks which for whatever reason has been placed into a child process. An Example of this would be, say, a multi-pass compiler/linker, where each pass is implemented as a separate proces...

Probably the single greatest source of bluescreen crashes in Windows XP is buggy device drivers. Since drivers run in kernel mode, there is no higher authority checking what they're doing. If some user-mode code runs amok and corrupts memory, it's just corrupting its own memory. The process eventually crashes, but the system stays up. On the o...