physical vs. logical definition of physical vs. logical in the Free Online Encyclopedia.

logical vs. physical

High-level versus low-level. Logical implies a higher view than the physical. Users relate to data logically by data element name; however, the actual fields of data are physically located in sectors on a disk. For example, if you want to know which customers ordered how many of a particular product, your logical view is customer name and quantity. Its physical organization might have customer name in a customer file and quantity in an order file cross referenced by customer number. The physical sequence of the customer file could be indexed, while the sequence of the order file could be sequential.

A message transmitted from Phoenix to Boston logically goes between two cities; however, the physical circuit could be Phoenix to Chicago to Philadelphia to Boston.

When you command your program to change the output from the video screen to the printer, that is a logical request. The program will perform the physical change of address from, say, device number 02 to device number 04. See logical vs. physical topology.

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			physical network physical oceanography physical optics physical organic chemistry physical path length Physical Perfection Physical Problems, Institute of physical property Physical Quantity physical realizability physical record physical residue physical science Physical Sequential physical stability physical stratigraphy physical system physical testing physical theory Physical Therapy physical time Physical Training, Military Physical Transport Network Physical Units physical vapor deposition physical vs. logical physical weathering Physical-Culture and Sports Press Physicalism Physician physician assistant physician's assistant Physician, Authorized physicist Physick, Philip Syng Physicochemical Analysis Physicochemical Mechanics Physicogeographical Country Physicogeographical District Physicogeographical Map Physicogeographical Province Physicogeographical Region Physicogeographical Regionalization Physicotechnical Institute Physics Physics Analysis Workbench Physics Education Physics of Metals, Institute of the Physics of the Earth Physics of the Sea Physics Research Institutes			Physical unit Physical unit Physical Unit 2 Physical Unit 2.1 Physical Unit 4 Physical Unit 5 Physical Unit Control Point Physical units Physical Uplink Shared Channel Physical urticaria Physical urticaria Physical urticaria Physical User Interface Profile physical value Physical vapor deposition Physical vapor deposition Physical Vapor Transport Physical Vapor Transport of Organic Solids Physical Vapour Deposition Physical verification Physical Verifications physical veterinary medicine physical veterinary medicine physical veterinary medicine Physical violence Physical volume Physical Volume ID Physical Volume Library Physical Volume Repository Physical Volume Reserved Area physical vs. logical Physical Vulnerability Division Physical Wavelength Link Physical weathering Physical weathering Physical Work Environment Satisfaction Questionnaire Physical Work Performance Evaluation Physical Working Capacity at 170 beats /minute Physical Working Capacity at a Heart Rate of 170 Beats Per Minute Physical Working Capacity at Fatigue Threshold Physical Working Capacity at the Heart Rate Threshold Physical, Chemical and Earth Sciences Research Reports Physical, Emotional, Mental, Spiritual Physical, Intellectual, Emotional, Capabilities, Environment, Social Physical, Physiological and Psychological Prediction Intelligence Physical-Chemical Treatment Physical-Culture and Sports Press physical-layer information base Physical-Layer Wireless Multicast Physical-Level Sharing Physical-Technical High School Physical-to-Image Physical-Virtual Association Physical/Chemical Closed Loop Life Support physicalisation physicalise

logical vs. physical (redirected from physical vs. logical)

logical vs. physical
(redirected from physical vs. logical)