Storage Systems

  • Yannis Manolopoulos
  • Yannis Theodoridis
  • Vassilis J. Tsotras
Part of the Advances in Database Systems book series (ADBS, volume 17)


A storage hierarchy made up of levels, as shown in Figure 1.1, characterizes every computing system and especially a DBMS. A general remark about the memories in this hierarchy is that, when descending from top to bottom, the memories become slower, larger and cheaper. In general, storage devices can be divided into three categories: primary, secondary and tertiary storage. The upper two levels of this hierarchy are characterized as primary storage. The next two levels are characterized as secondary storage, while the last level as tertiary storage.


Optical Disk Storage Device Disk Drive Hard Disk Drive Constant Angular Velocity 
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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Yannis Manolopoulos
    • 1
  • Yannis Theodoridis
    • 2
  • Vassilis J. Tsotras
    • 3
  1. 1.Aristotle UniversityGreece
  2. 2.Greece
  3. 3.University of CaliforniaRiversideUSA

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