Qué (quién) es P-20 longitudinal data systems - definición
P-20 longitudinal data systems
AMERICAN EDUCATIONAL DATABASES
P-20 longitudinal data systems are state-level educational databases in the United States created to "capture, study and use student data from preschool into future workforces.”
![An XDS Sigma 9 at the [[Living Computer Museum]], Seattle, Washington, 2014](https://commons.wikimedia.org/wiki/Special:FilePath/LCM - Xerox Sigma 9 (right) and related equipment - 01.jpg?width=200 "An XDS Sigma 9 at the [[Living Computer Museum]], Seattle, Washington, 2014")
SDS 92
AMERICAN COMPUTER COMPANY
Xerox Data Systems; SDS 92
<computer> A 12-bit computer from Scientific Data Systems
which preceded the Xerox Data Systems Model 940.
(2001-03-03)
