Old timer. Started with IBM in the 70´s, IPL with punched cards . System 360, 370, BOS, DOS. OS. COBOL. PLI, Assembler.
Switched over to ICL, Honeywell Bull, Nixdorf, and later came the Space Age= Sun Solaris, Oracle 8i, 9, 10g. Microsoft, WinXP, Vista, Win7, Office 2003, Outlook 2003. Lotus Notes 7 and 8.