I just discovered Arduino from a RadioShack advertisement dated Nov 11 2011. Really looks like a well thought out family of microprocessor building blocks. However I need some help with the terminology.
What is a shield? In my past electronic experience a shield was used to prevent electro-magnetic energy from ingress or outgress. I do not think the two uses of "shield" are the same.
What is a sketch? I have been programing since the Z80 days and never heard the term "sketch".
Graynomad:
Shield - a plug on "daughter board" that allows you to add features to the basic unit.
Sketch - A stupid name for a C/C++ program.
Rob
These are artistic names Rob. You tell artists technical names as above, the first thing they might do is to turn around and leave.
OP, arduino is a popular platform for various art science engineering hobby projects, ranging from plain silly to incredibly brilliant. Just google its unique name. Welcome to the arduino community!