Gadget Spot

I just got a blog on blogspot.com, and I was wondering what a gadget?

if you want to add HTML or Java on your blog, you click Add a gadget and click on HTML and Java and paste the code in, or add other gadgets such as photos, weather, list. what ever you see in the add gadget that you want on your blog. like these, you can copy the code and paste it in the Add a gadget in the HTML and Java http://www.google.com/ig/directory?synd = ...

are mini programs "to suggest that the functions easy and convinient
for example, "a weather button on your desktop that will show you the local weather on your desktop every day ........
you must download a program, then get as many gadgets as you want
they consume a lot of RAM if ,,,,,,,,,,,,