I've never fully grasped the differences--and with broadband I suspect the time of transmission difference is minor, especially if, say, your image is a 60 kb file.
But in the following instance, what accounts for the great difference I noticed? Would someone also explain just how the two processes of transmission differ as well
A friend is using dial-up. We pasted this 60 kb image into his email and it got sent off to the addressee within seconds.
Then he (we) attached the same picture to a new email and sent that off to the same addressee. This time it took considerably longer for the email to get sent.
In both instances there was no text.