Reply 20 of 56, by EverythingOldIsNewAgain
I used a PII/400 (upgraded) Compaq laptop as a "daily driver" through 2007. I had other, up-to-date desktop machines, but as I didn't game much on laptops, it was still usable up until that time for word processing (Office XP), internet browsing (I believe I actually used a tabbed shell on-top of IE6 - Avant? and K-Meleon), graphics editing (some ancient version of PS), and multimedia (VLC).
My understanding is that things have deteriorated significantly web-wise since then. Browsing on a 486 now makes one cry (almost literally). I guess this shouldn't be so surprising but I have strong recollections of telling folks years back when they needed a new computer "If all you do is browse the web and type word documents you can get by on a 486". I also recall browsing the web on a 486/66 as late as 2001 or so and it still being just fine (limited only by the network connection).
The idea that you need a multiple core behemoth to render a web page is still a bit unsettling.
I still use a P3 laptop as my main laptop these days (again, supplemented by a relatively modern desktop). As long as you aren't trying to play Crysis, playing back HD videos on YouTube*, or attempting to play 1080p video, it works better than you'd think. I'm a bit surprised when folks say their dual Tualatin rigs are unusable these days as the laptop I refer to is quite a bit less advanced. I still say it beats the pants off of Atom-based netbooks I dealt with a few years back.
*Though Adobe broke full-screen playback, SD or not, somewhere along the line with this machine's ancient Radeon driver.