What if you have an image, or other file, and want to send it to someone. Not too long ago, your only choices were to print it out and either post or fax it. The easiest and cheapest one now is to attach the image file to an e-mail message and send it to the recipient that way. E-mail has become so universal that it's a great way to distribute your photographs.
Attachments are files that are sent along with email messages.
If email messages were paper memos, attachments would be files that you fastened to the memo with a paper clip. You can attach web pages, sound files, image files, and executable files. All you have to do is create an e-mail message addressed to the person you want to send a picture to and attach the photo. Almost all e-mail program's have an Attach command somewhere on their menus. When you use this command, you have to enter the name of the photograph you want to attach and most programs will let you browse to find it on your system.