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Posts by ijoyner

I'm afraid you fail this CS course. Go back and read my many entries on multitasking. OK, I'll explain again slowly. What does multitasking give you? The ability to swap applications and return to the original application exactly at the point where you left off. In CS jargon it's called saving state. IPhone OS does exactly this - it's just that state is not saved in main memory, it's saved out to flash. Swapping is sufficiently fast that this does not matter. The...
Ha you are joking - Burroughs sales people couldn't sell anything - they were known as the Burroughs sales prevention force \ Mind you, they did have to combat the IBM-only mindset, much as Apple has to battle the MS-only mindset these days. Not to mention the dirty-tricks departments. MCP still leaves Unix for dead and buffer overruns are completely prevented - the scourge of C-based security problems.
It already works that way without the multitasking people are talking about. Reading a book, listening to music while watching a movie at the same time... mmmmm. Even on a large screen that's difficult but on a 10" screen? What you have described really is single tasking - you are still only performing one action at a time on the device. The multitasking that people are asking for is a fiction and just FUD.
Flash is being replaced by Web 2.0 - it has served its need, but there are better technologies now. The iPhone OS is brilliant - full OS X inside and Cocoa Touch cleans up on Cocoa a lot (although I'm still bemoaning the lack of GC). Any DVD player would such the batteries - load your movies onto iPad in other ways, via iTunes and then play them on the road for much better battery use. Not only would a drive be a drain on the battery, but also extra weight to lug...
You don't need *general* multitasking. How does Mac, Windows, iPhone, and now iPad work? The user interacts with one application at a time - Cocoa routes events to that application until it is swapped. On Mac applications are kept in main memory for fast swapping, but there is no need to do this - the real need is to save task state. This the iPhone does in a different way, but it does it. The only need for MT is that messages can come from elsewhere - incoming calls and...
No it's named after the Burroughs A4 ;-) from its A Series, the later version of the original B5000. The link is very close - Robert (Bob) Barton designed the B5000 and later taught students such as Alan Kay at Uni of Utah. Kay of course started all this Mac and iPad stuff at Xerox and later worked at Apple. His original thinking came up with the Dynabook: http://en.wikipedia.org/wiki/Dynabook Maybe Barton was the original different thinker of the industry - design...
Jeff, I'll concede it's a subtle point. Users familiar with Mac know it's the equivalent of trash. But imagine a complete computer novice. Recycle bin could mean long-term storage or archive. As a software and concept designer myself, I believe terminology should be more precise, not cutesy. But this is just an example of Microsoft general terminology and confusion of concepts. The basic point is that implementation is visible. The metaphors are mixed. To use Fred P....
You are mixing up the concepts of physical paper and the information printed on it. The paper is the implementation. In computing the bits are the implementation. You should not burden users with implementation concepts. It makes for inconsistency and thus bad designs.
Actually, I should make the point that Microsoft's terminology on recycle bins (like Service Packs) is inconsistent. The problem is working on two levels of abstraction. The low level confuses the higher level because they are mixed. The concepts presented to the user are now confused and complex. That IS the difference between Apple and Microsoft. Apple has worked hard (and achieved it very well from the first Mac on) to present a consistent high level interface and...
No, you've still missed the point. The file as an abstraction is far removed from the bits it is stored on. It IS the FILE this operation applies to. The line of thinking is not rigid, just accurate. What should an end user care about the underlying technology their file is stored on? Microsoft continues to make people think at a low level in so many places. Like device ids c: d: h: are still around. This is primitive (and even was so in the 1970s!). Since you miss and...
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