The IBM-1130 was the first ‘real’ computer I ever touched. It was a fun, interactive experience that helped me understand how computers worked at every level. The primary languages I learned at that time taught me about hardware manipulation (1130 Assembler), Languages (COBOL, Fortran IV, RPG, PL/I), Operating Systems (DMS 2.0) and the basics of writing efficient, tight code (these were 8K word machines).