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Record-oriented filesystems can be supported on media other than direct access devices. A deck of punched cards can be considered a record-oriented file. A magnetic tape is an example of a medium that can support records of uniform length or variable length. In a record file system, a programmer designs the records that may be used in a file.
Distributed Data Management Architecture (DDM) is IBM's open, published software architecture for creating, managing and accessing data on a remote computer. DDM was initially designed to support record-oriented files; it was extended to support hierarchical directories, stream-oriented files, queues, and system command processing; it was further extended to be the base of IBM's Distributed ...
The more sophisticated record-oriented file systems have more in common with simple databases than with other file systems. CMS file system – The native file system of the Conversational Monitor System component of VM/370; Files-11 – early versions were record-oriented; support for "streams" was added later
This enables System/38 programs to create, manage, and access record-oriented files on remote System/36, System/38, and IBM mainframe systems running CICS. It also allows programs on remote System/36 and System/38 computers to create, manage, and access files of a System/38.
TSO supports a default prefix for files (similar to a "current directory" concept), and RACF supports setting up access controls based on filename patterns, analogous to access controls on directories on other platforms. As with other members of the OS family, MVS' data sets are record-oriented. MVS inherited three main types from its predecessors:
A text file, for example, is a list of records (lines) separated by a newline character. RMS is an example of a record-oriented filesystem. There are four record formats defined by RMS: Fixed length - all records in the file have the same length. Variable length - records vary in length, and every record is prefixed by a count byte giving its ...
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