OS development on linux kernel

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http://askubuntu.com – I am a computer science engineering student. I have currently taken up a project for developing an OS for smart wheel chair! Since i dont want to go as deep as kernel development, I have decided to work on linux kernel and build my OS on top of it. my question was, where do I find the emulators for Intel X86 tablets so that the OS i develop can be tested and debugged?? (HowTos)