Preservation
		¡ Y2K – two digits to mean four l If you knew COBOL, you could get a high paid job. l Legacy systems and knowledge need to be preserved ¡ Use standard formats!					¡ Media lifetime l Tape   15 years l CDR   10-50 years l HD   30 years ¡ Software/Hardware lifetime l New hardware 3-7 years l Software cycles faster l How to access old files, applications?