The steering committee met on June 4 and agreed to name the entire activity as the " Committee on Data Systems Languages ", or CODASYL, and to form an executive committee.
22.
GCOS 3 ( and later GCOS 7 and GCOS 8 ) featured a good Codasyl " relational " database called Integrated Data Store ( IDS ) that was the model for the more successful IDMS.
23.
You'll surely also want to know that COBOL was devised by CODASYL, the C ( conference ) O ( of ) DA ( data ) SY ( systems ) L ( languages ).
24.
By September, five more manufacturers had joined CODASYL ( Bendix, Control Data Corporation, General Electric ( GE ), National Cash Register and Philco ), and all represented manufacturers had announced COBOL compilers.
25.
There were many other new features, many of which had been in the " CODASYL COBOL Journal of Development " since 1978 and had missed the opportunity to be included in COBOL-85.
26.
The two main early navigational data models were the hierarchical model, epitomized by IBM's IMS system, and the CODASYL model ( network model ), implemented in a number of products such as IDMS.
27.
Instead of records being stored in some sort of linked list of free-form records as in CODASYL, Codd's idea was to use a " table " of fixed-length records, with each table used for a different type of entity.
28.
A next step in IS modeling was taken by CODASYL, an IT industry consortium formed in 1959, who essentially aimed at the same thing as Young and Kent : the development of " a proper structure for machine independent problem definition language, at the system level of data processing ".
29.
This close correspondence between the logical model and the physical implementation ( which is not a strictly necessary part of the Codasyl model, but was a characteristic of all successful implementations ) is responsible for the efficiency of database retrieval, but also makes operations such as database loading and restructuring rather expensive.
30.
Interest in a standard began to grow, and Charles Bachman, author of one such product, the Integrated Data Store ( IDS ), founded the " Database Task Group " within CODASYL, the group responsible for the creation and standardization of COBOL . In 1971, the Database Task Group delivered their standard, which generally became known as the " CODASYL approach ", and soon a number of commercial products based on this approach entered the market.
