worse but still moving
electronic will eventually fail and needed replacement

because Mobile Phone can be "mobile" while Desktop PC is not

i dnt know how a tablet/smartphone can replace a PC
up until today also i dnt understand
laptop thn im ok

That's what I mean actually. Companies buy preinstalled PCs as they have technical support in case of breakdown. But they build them too good until breakdowns hardly happen. Thus no need to buy a new one.

I know about this because my company bought like 20+ HP PCs about 6+ years ago. And since then only 2 were spoilt - due to a lightning strike. The others still running smoothly using XP.....

the ultimate part is still the PC
as resolution grow, as internet speed getting faster
your PC also needs to be able to handle it
its like you're stuck with dual core but wanna play 2k youtube video..it will freeze your PC

plus u need to be able to do work, run office on your smartphone