Thanks Raghu,

I understand that this is a BIG Challenge for me.If something goes wrong, my future could be in danger specially for a girl like me. I am trainnee, My futute placements will depend on the Boss recommendations.

To start experimenting at home, I should buy my own parts and blow it off .I am good at putting the components together in a experimental board. My classmate has promised me to provide with p89C51 with its software because it's easily available in the market.( I don't know what it is ) I am very much excited, this will be my first project and I will be doing it myself.

After reading your reply, I want to be very careful.Can u suggest me how many DI,DO,AI,AO can be used with this chip alongwith keyboard and LCD.
and other components I should procure from the market.
Thanks

Rashu