IBM OS/390 User Manual
sequential data set. A data set whose records are
organized on the basis of their successive physical
positions, such as on magnetic tape. Contrast with
direct data set.
organized on the basis of their successive physical
positions, such as on magnetic tape. Contrast with
direct data set.
sequential file. A file in which records are processed
in the order in which they are entered and stored in
the file. Contrast with direct file, indexed file.
in the order in which they are entered and stored in
the file. Contrast with direct file, indexed file.
sequential processing. (1) The processing of logical
records in the order in which they are accessed. (2)
The processing of records in the order in which they
exist in a file. Synonymous with consecutive
processing.
records in the order in which they are accessed. (2)
The processing of records in the order in which they
exist in a file. Synonymous with consecutive
processing.
ServerPac. A software delivery package consisting of
installed products and integrated service for a
ready-to-IPL system. To install, you use the
CustomPac Installation Dialog -- the same dialog that
is used for all the CustomPac offerings, including
SystemPac and ProductPac.
installed products and integrated service for a
ready-to-IPL system. To install, you use the
CustomPac Installation Dialog -- the same dialog that
is used for all the CustomPac offerings, including
SystemPac and ProductPac.
shared spooling. A function that permits the
VSE/POWER account file, data file, and queue file to
be shared among several computer systems with
VSE/POWER.
VSE/POWER account file, data file, and queue file to
be shared among several computer systems with
VSE/POWER.
SIE. SoftwareXcel Installation Express. A service
offering in the USA built on SystemPac with IBM
assistance included for installation and
implementation.
offering in the USA built on SystemPac with IBM
assistance included for installation and
implementation.
simulation. (1) The use of a data processing system
to represent selected behavioral characteristics of a
physical or abstract system; for example, the
representation of air streams around airfoils at
various velocities, temperatures, and air pressures.
(2) Contrast with emulation.
to represent selected behavioral characteristics of a
physical or abstract system; for example, the
representation of air streams around airfoils at
various velocities, temperatures, and air pressures.
(2) Contrast with emulation.
sliding window. A technique to determine the
century (high-order digits) of a year when represented
by two digits. The user specifies the number of years
(both past and future) within a 100-year window
spanning two centuries. For example, assume the
window is set at 19 future years (1996-2014) and 80
past years (1915-1994). Dates in the range
century (high-order digits) of a year when represented
by two digits. The user specifies the number of years
(both past and future) within a 100-year window
spanning two centuries. For example, assume the
window is set at 19 future years (1996-2014) and 80
past years (1915-1994). Dates in the range
00-14
(inclusive) are designated 21st century dates because
they fall into the future window. Dates in the range
they fall into the future window. Dates in the range
15-99
(inclusive) fall into the 20th century.
SMF. system management facilities. A component of
MVS and OS/390 that collects input/output (I/O)
statistics, provided at the data set and storage class
levels, which helps you monitor the performance of
the direct access storage subsystem.
MVS and OS/390 that collects input/output (I/O)
statistics, provided at the data set and storage class
levels, which helps you monitor the performance of
the direct access storage subsystem.
SMP/E. System Modification Program Extended.
SMP/E is the IBM product designed to install new
function and subsequent service into target libraries
and distribution libraries.
SMP/E is the IBM product designed to install new
function and subsequent service into target libraries
and distribution libraries.
SMS. Storage Management Subsystem. A
DFSMS/MVS or MVS/DFP facility used to automate
and centralize the management of storage.
DFSMS/MVS or MVS/DFP facility used to automate
and centralize the management of storage.
SNA network. The part of a user-application network
that conforms to the formats and protocols of
Systems Network Architecture. It enables reliable
transfer of data among end users and provides
protocols for controlling the resources of various
network configurations. The SNA network consists of
network accessible units (NAUs), boundary function,
gateway function, and intermediate session routing
function components; and the transport network.
that conforms to the formats and protocols of
Systems Network Architecture. It enables reliable
transfer of data among end users and provides
protocols for controlling the resources of various
network configurations. The SNA network consists of
network accessible units (NAUs), boundary function,
gateway function, and intermediate session routing
function components; and the transport network.
software. All or part of the programs, procedures,
rules, and associated documentation of a data
processing system. Software is an intellectual
creation that is independent of the medium on which
it is recorded.
rules, and associated documentation of a data
processing system. Software is an intellectual
creation that is independent of the medium on which
it is recorded.
source code. The input to a compiler or assembler,
written in a source language. Contrast with object
code.
written in a source language. Contrast with object
code.
source language. The programming language for
expressing source programs that a particular
translator can accept.
expressing source programs that a particular
translator can accept.
source program. (1) A set of instructions written in a
programming language that must be translated to
machine language before the program can be run. (2)
Contrast with object program.
programming language that must be translated to
machine language before the program can be run. (2)
Contrast with object program.
source statement. A statement written in symbols of
a programming language; for example, RPG, COBOL,
BASIC, and PL/I specifications are source statements.
a programming language; for example, RPG, COBOL,
BASIC, and PL/I specifications are source statements.
spool file. (1) A file that contains output data that
has been saved for later processing. (2) One of three
VSE/POWER files on disk: queue file, data file, and
account file.
has been saved for later processing. (2) One of three
VSE/POWER files on disk: queue file, data file, and
account file.
spreadsheet. A worksheet arranged in rows and
columns, in which a change in the contents of one cell
can cause electronic recomputation of one or more
cells, based on user defined relations among the
cells.
columns, in which a change in the contents of one cell
can cause electronic recomputation of one or more
cells, based on user defined relations among the
cells.
stand-alone. Pertaining to operation that is
independent of any other device, program, or system.
independent of any other device, program, or system.
standard label. A fixed-format record that identifies a
volume of data such as a tape reel or a file that is
part of a volume of data.
volume of data such as a tape reel or a file that is
part of a volume of data.
statement. In programming languages, a language
construct that represents a step in a sequence of
actions or a set of declarations.
construct that represents a step in a sequence of
actions or a set of declarations.
storage location. A position in a storage device that
is uniquely specified by means of an address.
is uniquely specified by means of an address.
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