#CPU's clock (year,cpu,mem)
1994	0.0333	0.016	0.160
1995	0.0666	0.016	0.250
1996	?	?	?	
1997	0.200	0.064	1.600
1998	?	?	?
1999	0.400	0.128	30
2000	0.700	0.256	100
2001(winnote)	0.500	0.064	20
2002(ibook)	0.600	0.384	20
2003(ibook)	0.800	0.384	30
2004(ibook)	0.800	0.640	20
2005(ibook)	1.200	0.768	30
2006(ibook)	1.330	0.512	80