well I work in a Computer repair store.. and I can tell you from 7 years of experience. Hard disk drives can
and WILL slow down from 30mb/s to about 1mb/s for example.
NOT ALL hard disks will do this. some models are more prone than others... so there is truth to the above posts...
Just like ANY electrical goods. components WILL fail over time.. And as far as CPU slow down over time is concerned..
Yes it IS possible for reasons mentioned above... socket A Athlons were VERY prone to this..... Again it wont happen to ALL CPU's which is what this post is about.. In fact the CPU in a computer will outlast every other component.. and are ALOT less bound to fail.