how do i load pictures and music a PC to IMac
I am new to MAC, and have always used a pc. So i have a seagate external hard drive and wanted to bring all my music and photo's from pc to my IMac and save there, so I can get rid of the pc. i have a lot of music and pictures on my iTunes Account, but i have a ton more i'd like to save onto my IMac. Can anyone tell me in simple terms? I'm no computer genius and don't know much about IMac and don't want to be frustrated. Thanks.
iMac, iOS 11.0.3