EMBEDDED SYSTEM TILL DIE

starting embedded linux..

What is toolchain?
what is bootloader?
what is kernel ?
what is user spase? (e.g busybox)

There is for element u must know, if u decide to emmbedde linux work..
code sourcey is toolchain
U-boot is bootloader
for first i'm studying about qemu. it is virtual machine.. so i dont need hardware for my embedded system just simulator..

OMG, my english is bad..

NB: the writer is leaning english noww... so i,m sorry if my bad english...
Source:
Chris Simmonds Embedded Linux Conference Europe 2010 Copyright © 2010, 2net Limited