WWW and ORACLE integration question

Hello everyone,

I am quiet familiar with oracle and new to the web developement scene.

I am trying to prototype a simple application which does an

	add
	modify
	view
	delete

to a single oracle table from the web.

My questions are as follows

1. What are the reqd software components to be written ? HTML, CGI's etc
2. What is exactly a CGI ? ( in simple words please )
3. Assuming that the software components are in place how do I make my machine 'viewable' to the world ?
4. Can someone who has gone thru the learning curve suggest suitable web-sites which help integrate an oracle database to WWW ?

Thanks a lot for your time and patience.

regards,
Jude

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