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Что (кто) такое Virtual Storage Access Method - определение
IBM DISK FILE STORAGE ACCESS METHOD
VSAM; Virtual Sequential Access Method; Virtual sequential access method; Virtual storage access method
Найдено результатов: 4458
Virtual Storage Access Method
<database> (VSAM) An IBM disk file storage scheme first used
in S/370 and virtual storage. VSAM comprises three access
methods: Keyed Sequenced Data Set (KSDS), {Relative Record
Data Set} (RRDS), and Entry Sequenced Data Set (ESDS).
Both IMS/DB and DB2 are implemented on top of VSAM and use
its underlying data structures.
["Storage" or "Sequential"? ]
(2002-07-26)
Virtual Storage Access Method
Virtual Storage Access Method (VSAM) is an IBM DASD file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout the Multiple Virtual Storage (MVS) architecture and now in z/OS. Originally a record-oriented filesystem, VSAM comprises four data set organizations: key-sequenced (KSDS), relative record (RRDS), entry-sequenced (ESDS) and linear (LDS).
VSAM
Virtual Storage Access Method
Virtual Sequential Access Method
VSAM
Virtual Sequential Access Method (Reference: SAM)
Virtual function
INHERITABLE AND OVERRIDABLE FUNCTION OR METHOD FOR WHICH DYNAMIC DISPATCH IS FACILITATED
Virtual method; Virtual methods; Pure virtual function; Virtual functions; Pure virtual method; Virtual destructor; Virtual Function
In object-oriented programming, in languages such as C++, and Object Pascal, a virtual function or virtual method is an inheritable and overridable function or method for which dynamic dispatch is facilitated. This concept is an important part of the (runtime) polymorphism portion of object-oriented programming (OOP).
Access method
APIS PROVIDED BY IBM MAINFRAME COMPUTER OPERATING SYSTEMS (PRINCIPALLY MVS) FOR FILE ACCESS AND TELECOMMUNICATIONS
Access methods; Storage access method
An access method is a function of a mainframe operating system that enables access to data on disk, tape or other external devices. Access methods were present in several mainframe operating systems since the late 1950s, under a variety of names; the name access method was introduced in 1963 in the IBM OS/360 operating system.
access method
APIS PROVIDED BY IBM MAINFRAME COMPUTER OPERATING SYSTEMS (PRINCIPALLY MVS) FOR FILE ACCESS AND TELECOMMUNICATIONS
Access methods; Storage access method
<networking> 1. The way that network devices access the
network medium.
2. Software in an SNA processor that controls the flow of
data through a network.
[physical layer? ]
(1998-03-02)
multiple access
MEANS FOR MORE THAN TWO TERMINALS TO COMMUNICATE OVER ONE MEDIUM
Multiple access; Channel access; Multiple access method; Multiple-access protocol; Channel access methods; Multiple access protocols; Multiple access protocol; Power-division multiple access; Time and Frequency division multiple access
Википедия
Virtual Storage Access Method
Virtual Storage Access Method (VSAM) is an IBM DASD file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout the Multiple Virtual Storage (MVS) architecture and now in z/OS. Originally a record-oriented filesystem, VSAM comprises four data set organizations: key-sequenced (KSDS), relative record (RRDS), entry-sequenced (ESDS) and linear (LDS). The KSDS, RRDS and ESDS organizations contain records, while the LDS organization (added later to VSAM) simply contains a sequence of pages with no intrinsic record structure, for use as a memory-mapped file.
