IBM 1401. 12K of characters (BCD-coded), card I/O, fast printer (600 LPM!) and a 1311 disk (2e6 characters, random access, with removable disk packs. About the same capacity as a floppy). Fortran IV, COBOL, RPG, Autocoder (assembly) and more. And the Computer History Museum has one that is operational! See en.wikipedia.org/wiki/IBM_1401 and http://1401.org