Will computers ever be replaced by mobile devices?

I hate using my computer as i'm typing this i'm using my iphone its faster than my computer it never get a virus it seems like whenever i use my computer i find some problem that i have to spend hours trying to fix ill go online find a tutorial and follow it only to find that for some reason i can't proceed because my computer just will not do what its supposed to do i then can't proceed and my computer just sits broken and unusable. My iphone on the other hand never has a problem ever everything works how its supposed to and seems more stable i never use my computer.

Whatever a phone can do, there will always be larger and more powerful computers that can do more. So computers will still be here for a long time.

No. There are things you simply can't do on a mobile. And for those things there will always be a desktop. If you don't need to do any of those things, then you don't need a desktop. But not everyone does what you do.

For example, I'm a PC gamer. Mobile electronics are twice as expensive as the equivalent desktop. Heat dissipation is an issue too. Mobile processors are slower than the same branded desktop processors so they don't overheat. And I prefer a large display, full size keyboard, mouse, joystick, trackIR, etc. Plugging all that into a moblie device defeats the point of being mobile. I have several tablets, but none of them replace my desktop.

Most likely I have two phone and I usally use my xperia z and that has 8 gb ram and a 1.8ghz qaud core procceser so most likely in about 2 more years