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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: Comput Biol Chem. 2008 Jul 16;32(6):462–468. doi: 10.1016/j.compbiolchem.2008.07.014

Table 1.

Comparative view of tiers in the information flow process. Physical materials and the unit of information organization in each tier are presented.

Tiers Computer Cell
Hardware Organization Material Organization
Storage Hard-drive Paging Genome Operon; Regulon
Intermediate Memory Cache-line mRNA Post-transcriptional RNA Operon (PTRO)
Cache CPU Cycle Protein A reaction
Execution CPU Binary transformation Catalysis A reaction