Knowing what phone and what computer would really really help here, afterall ibm has made more then 1 thinkpad and there is more then 1 kind of phone made in the last 15 years.
There are so many ways to get a pic from pc to a smartphone that it is difficult to believe you made any attempt at all to figure this out yourself. You can use an sd card, a network share, post the image the facebook/instagram/etc and re-download it, save the file to dropbox/google drive/etc and then install the app on your phone.