whats the difference between cat 6 and cat 5 code example

Example: difference between cat> and cat>>

cat <file name> => displays the contents of the file
cat => takes input from STDIN and puts it back to the STDOUT
cat > <filename> => Take in put from STDIN and put contents in <filename>, This will overwrite the contents.
cat >> <filename> => Take in put from STDIN and put contents in <filename>, This will append the contents.