running windows XP? and powering carputers (i'm a n00b)
i've seen people here talking about running windows XP in thier carputers. My parents have a 2.0Gig P4 with 256meg of ram and XP runs slow as mollasses on thiers. The people on here are talking mini-atx setups with processors no bigger than 1gig celerons. how does that work? Is there some sort of windows CE derived OS specifically for this stuff?
I want to put media engine in mine, but is mediaengine a program or an operating system? when I boot up, do i go into mediaengine or do i go into windows then click on mediaengine to load it?
is a car battery powerful enough to power a fullsized (or a microatx) computer? will it drain the battery because the alternator isn't powerful enough to keep up?
part 3: can i hook my head unit's remote wire (the ignition lead) into my carputer so it boots up when I turn the car over and shuts down when I turn the car off?
all the questions I got for now, i got to go to class then work. be plentiful with the replies :)