1 DNA and RNA base pairing is slightly different, since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine. 2  Uracil differs from thymine in that it lacks a methyl group on its ring. DNA and RNA base pairing is slightly different, since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine. 2  Uracil differs from thymine in that it lacks a methyl group on its ring.
Linux has a notion of Load Average which is defined as: System load averages is the average number of processes that are either in a runnable or uninterruptable state. A process in a runnable st...
Gartner reported on 23 December 2008, that Linux on System z was used on approximately 28% of the customer z base and that they expected this to increase to over 50% in the following five years. Of Linux on System z, Red Hat and Novell compete to sell RHEL and SLES respectively. Prior to 2006, Novell claimed a market share of 85% or more.