logo creation - whats a vector

Well i read around and i heard that illustrator is the best for creating logos. I noticed specifically people saying illustrator was best for vector works.

so my question for you all is what is a vector?

 

vector is a kind of image that looks like a cartoon image, if i may use the word "cartoonized".. google the word vector or vector images..it's really hard to define vector, but if you are into designing you will be familiar with the word.hope this one will help you.thank you!

 

a raster image is a matrix(table) of pixels that stores the color code for each pixel. so if a line is stored as a raster image, it would be quite close to the following table
0 0 0 1
0 0 1 0
0 1 0 0
1 0 0 0
when zero represents background (or may be transparent) and 1 represents your foreground - so our brain connects the 1's to make a line.

where as a vector is a mathematical storage of the given shape. using the same example the line here would have been stored quite close to
start: 0,4
end: 4,0

Hence, in a vector you can store the shapes as points. And extending this theory, you can create any curve you want, however complex it may be mathematically, still without getting into the mathematics.

The advantage of using vector graphics, is that the clarity of vector graphics is independent of the image dimensions. Hence it is very convenient to be scaled while printing.

here are a few pieces of literature that you can read.
http://en.wikipedia.org/wiki/Vector_graphics -> http://upload.wikimedia.org/wikipedia/en/a/aa/VectorBitmapExample.svg
http://en.wikipedia.org/wiki/Scalable_Vector_Graphics -> http://upload.wikimedia.org/wikipedia/commons/c/c7/SVG.svg