HELP. problem uploading photos
I am running OS X El Capitain version 10.11.3 and I am trying to download my recent vacation photos from my Canon Rebel T1i. I haven't used my camera with the computer in over 6 months but have never had a problem uploading before. Now I can not do it. I attach the camera to the computer via the USB cord I have always used and NOTHING. The computer doesn't recognize the camera and the camera does nothing. What's going on here. HELP PLEASE. I can no loner find my iPhotos and all I have is Photos and I don't even know if they are the same thing.
MacBook Air, OS X El Capitan (10.11.3)