BackupsCompared to Windows, the world of Unix backup is extraordinarily rich. You have many tools available, from basic to quite complex and extensive. Just knowing what tool to use is a challenge in itself.
PrintingIf you are coming from the Windows world, you are probably bewildered by the multiple kinds of printing schemes in Unix. There's lpd, System V, direct to port, smb, CUPS, LPRng and weird stuff that uses ftp, and probably more. Worse, there is no such thing as a printer driver in the same sense as you have in Windows.