| podobné slovo | definícia |
naval tactical data system
(encz) | naval tactical data system, n: |
naval tactical data system
(wn) | naval tactical data system
n 1: a shipboard system for collecting and displaying tactical
data |
conference on data systems languages
(foldoc) | Conference On DAta SYstems Languages
CODASYL
(CODASYL) A consortium that developed
database models and standard database extensions for
COBOL.
CODASYL was formed in 1959 to guide the development of a
standard programming language that could be used on many
computers. Members came from industry and government {data
processing} departments. Its goal was to promote more
effective data systems analysis, design and implementation.
It published specifications for various languages over the
years, handing these over to official standards bodies (ISO,
ANSI or their predecessors) for formal standardisation.
The 1965 List Processing Task Force worked on the IDS/I database
extension. It later renamed itself to the Data Base Task Group
(DBTG) and publishing the Codasyl Data Model, the first to allow
one-to-many relations. This work also introduced {data
definition languages} (DDLs) to define the database schema and a
data manipulation language (DML) to be embedded in COBOL
programs to request and update data in the database.
Interest in CODASYL declined with the rise of {relational
databases} beginning in the early 1980s.
(2013-12-29)
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novell data systems
(foldoc) | Novell Data Systems
A small computer hardware company building CP/M
Z80-based systems. They later went on to become {Novell,
Inc.} and develop Novell Netware.
(1995-09-23)
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scientific data systems
(foldoc) | Scientific Data Systems
(SDS) The company that produced the SDS 940 (later
renamed XDS 940). Around 1968 Xerox bought out SDS and
renamed the SDS machines to XDS.
[What else?]
(2001-03-03)
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xerox data systems model 530
(foldoc) | Xerox Data Systems Model 530
XDS 530
(XDS 530) A computer from the {Scientific Data
Systems} range, announced sometime after 1968 when Xerox
bought out SDS. The XDS 530 was probably under development at
SDS before the buy-out but only announced afterwards.
(2004-06-17)
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xerox data systems model 940
(foldoc) | Xerox Data Systems Model 940
SDS 940
XDS 940
(SDS 940, XDS 940) A time-sharing system,
announced in February 1966, developed by {Scientific Data
Systems} with help from The {University of California at
Berkeley} and Tymshare. SDS 940 was backward compatible
with SDS's previous systems (except the 12-bit SDS 92). It
had monitor and user modes, dynamic program relocation,
automatic memory fragmentation, and system protection.
After 1968 Xerox bought out SDS and renamed the SDS machines
"Xerox Data Systems" (XDS). Xerox then produced the {XDS
530}.
(2004-06-17)
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