Linked by Hadrien Grasland on Fri 15th Apr 2011 10:24 UTC
OSNews, Generic OSes Ever since iPhoneOS (now iOS) has been released, there's an old fight going on about how multitasking should work on personal computers, and more specially what should happen to applications which are put in the background. Some advocate that they should be dipped in virtual liquid nitrogen and stop doing anything, like on iOS, which others advocate that they should continue to run in the background, like on desktop OSs. What about putting a little more flexibility in there?
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RE: Comment by OSbunny
by Neolander on Fri 15th Apr 2011 11:52 UTC in reply to "Comment by OSbunny"
Neolander
Member since:
2010-03-08

People are calling tablets and smart phones PCs now?

Well, for me personal computing designates all computers which are designed to be owned and operated by a single individual at once in the largest part of their life cycle.

This is also the definition of Wikipedia : http://en.wikipedia.org/wiki/Personal_computing

Frozen tasks are not multitasking. Multitasking is multiple running programs. If they are not getting CPU time its not multitasking.

Well, since Apple have decided to call the iOS task switcher multitasking ( http://www.apple.com/iphone/features/multitasking.html ), we are now forced to include in multitasking the act of holding several processes in memory at once, even if they do not receive CPU time.

Edited 2011-04-15 12:07 UTC

Reply Parent Score: 2

RE[2]: Comment by OSbunny
by jack_perry on Fri 15th Apr 2011 14:09 in reply to "RE: Comment by OSbunny"
jack_perry Member since:
2005-07-06

"Frozen tasks are not multitasking. Multitasking is multiple running programs. If they are not getting CPU time its not multitasking.

Well, since Apple have decided to call the iOS task switcher multitasking...
"

Well, since MinTruth decided to call war peace and slavery freedom...

What iOS usually does is called task-switching, not multitasking. iOS has very limited support for multitasking, to complete a download, for example. However, if I load a computer algebra system (say) onto an iPad, I wouldn't be able to start a long computation and let it go for a half hour while in the meantime I read email or other things. Because of this, the iPad will not substitute for a PC in its current form.

I understand that Apple imposes this limitation for reasons that are important to battery life, etc., but that doesn't change the fact that it isn't multitasking. Since WebOS, Windows Mobile, and now Playbook came out with real multitasking, making Apple look kind of, you know, Stone Age, Apple's solution has been to point to a task switcher UI and say, "Look! multitasking!" No, it isn't.

Reply Parent Score: 6

RE[3]: Comment by OSbunny
by Neolander on Fri 15th Apr 2011 14:21 in reply to "RE[2]: Comment by OSbunny"
Neolander Member since:
2010-03-08

Apple's solution has been to point to a task switcher UI and say, "Look! multitasking!" No, it isn't.

Not quite. It's a bit more interesting. As has been mentioned multiple times, iOS 4 offers a number of hacks that allow to get around the "one task at a time" limitation for very specific purposes.

As an example, Skype for iOS works using such a hack, called "voip mode".

The thing is, it's not a sustainable model, because as more people figure out what they can develop, Apple will have to add more and more hacks or to ban more and more applications. But who could explain that to them ?

Edited 2011-04-15 14:28 UTC

Reply Parent Score: 2