| slovo | definícia |
virtual machine
(foldoc) | Virtual Machine
Virtual Machine/ESA
Virtual Machine/System Product
Virtual Machine/XA
VM
VM/ESA
VM/SP
VM/XA
(VM) An IBM pseudo-operating system
hypervisor running on IBM 370, ESA and IBM 390
architecture computers.
VM comprises CP (Control Program) and CMS ({Conversational
Monitor System}) providing Hypervisor and personal computing
environments respectively. VM became most used in the early
1980s as a Hypervisor for multiple DOS/VS and DOS/VSE
systems and as IBM's internal operating system of choice. It
declined rapidly following widespread adoption of the IBM PC
and hardware partitioning in microcode on IBM mainframes
after the IBM 3090.
VM has been known as VM/SP (System Product, the successor to
CP/67), VM/XA, and currently as VM/ESA (Enterprise Systems
Architecture). VM/ESA is still in used in 1999, featuring a
web interface, Java, and DB2. It is still a major IBM
operating system.
(http://vmdev.gpl.ibm.com/).
["History of VM"(?), Melinda Varian, Princeton University].
(1999-10-31)
|
virtual machine
(foldoc) | virtual machine
1. An abstract machine for which an interpreter exists.
Virtual machines are often used in the implementation of
portable executors for high-level languages. The HLL is
compiled into code for the virtual machine (an {intermediate
language}) which is then executed by an interpreter written
in assembly language or some other portable language like
C.
Examples are Core War, Java Virtual Machine, OCODE,
OS/2, POPLOG, Portable Scheme Interpreter, {Portable
Standard Lisp}, Parallel Virtual Machine, {Sequential Parlog
Machine}, SNOBOL Implementation Language, SODA,
Smalltalk.
2. A software emulation of a physical computing environment.
The term gave rise to the name of IBM's VM {operating
system} whose task is to provide one or more simultaneous
execution environments in which operating systems or other
programs may execute as though they were running "on the bare
iron", that is, without an eveloping Control Program. A major
use of VM is the running of both outdated and current versions
of the same operating system on a single CPU complex for the
purpose of system migration, thereby obviating the need for a
second processor.
(2002-04-15)
|
| | podobné slovo | definícia |
java virtual machine
(foldoc) | Java Virtual Machine
Java VM
JVM
(JVM) A specification for software
which interprets Java programs that have been compiled into
byte-codes, and usually stored in a ".class" file. The JVM
instruction set is stack-oriented, with variable
instruction length. Unlike some other instruction sets, the
JVM's supports object-oriented programming directly by
including instructions for object method invocation (similar
to subroutine call in other instruction sets).
The JVM itself is written in C and so can be ported to run
on most platforms. It needs thread support and I/O (for
dynamic class loading). The Java byte-code is independent
of the platform.
There are also some hardware implementations of the JVM.
{Specification
(http://javasoft.com/docs/books/vmspec/html/VMSpecTOC.doc.html)}.
{Sun's Java chip
(http://news.com/News/Item/0,4,9328,00.html)}.
[Documentation? Versions?]
(2000-01-03)
|
parallel virtual machine
(foldoc) | Parallel Virtual Machine
PVM
(PVM) 1. A software system
designed to allow a network of heterogeneous machines to be
used as a single distributed parallel processor.
PVM was developed by the University of Tennessee, The {Oak
Ridge National Laboratory} and the Emory University.
(http://epm.ornl.gov/pvm/).
Usenet newsgroup: news:comp.parallel.pvm.
2. The intermediate language used by the Gambit compiler for
Scheme.
[And Multilisp?]
(1995-01-30)
|
virtual machine environment
(foldoc) | Virtual Machine Environment
(VME) ICL's mainframe operating system.
(1995-06-28)
|
virtual machine manager
(foldoc) | hypervisor
virtual machine manager
(Or "virtual machine manager") A program that
allows multiple {operating
systems} to share a single "host" computer. The hypervison allows
each operating system
to behave as though it had the host's processor, memory and other
resources all to itself.
(2022-02-23)
|
virtual machine/conversational monitor system
(foldoc) | Virtual Machine/Conversational Monitor System
Conversational Monitor System
VM/CMS
(VM/CMS) An IBM time-sharing and
personal computing environment executing under {Virtual
Machine} (VM) in a virtual machine environment. VM/CMS is
designed to support large numbers of interactive users. It
relies on numerous APIs into the Control Program (CP) to
provide very efficient single-user processing
VM/CMS was only adopted some time after the original design of
Virtual Machine as a more efficient personal computing
environment than MVS/TSO.
(1999-01-19)
|
virtual machine/esa
(foldoc) | Virtual Machine
Virtual Machine/ESA
Virtual Machine/System Product
Virtual Machine/XA
VM
VM/ESA
VM/SP
VM/XA
(VM) An IBM pseudo-operating system
hypervisor running on IBM 370, ESA and IBM 390
architecture computers.
VM comprises CP (Control Program) and CMS ({Conversational
Monitor System}) providing Hypervisor and personal computing
environments respectively. VM became most used in the early
1980s as a Hypervisor for multiple DOS/VS and DOS/VSE
systems and as IBM's internal operating system of choice. It
declined rapidly following widespread adoption of the IBM PC
and hardware partitioning in microcode on IBM mainframes
after the IBM 3090.
VM has been known as VM/SP (System Product, the successor to
CP/67), VM/XA, and currently as VM/ESA (Enterprise Systems
Architecture). VM/ESA is still in used in 1999, featuring a
web interface, Java, and DB2. It is still a major IBM
operating system.
(http://vmdev.gpl.ibm.com/).
["History of VM"(?), Melinda Varian, Princeton University].
(1999-10-31)
|
virtual machine/system product
(foldoc) | Virtual Machine
Virtual Machine/ESA
Virtual Machine/System Product
Virtual Machine/XA
VM
VM/ESA
VM/SP
VM/XA
(VM) An IBM pseudo-operating system
hypervisor running on IBM 370, ESA and IBM 390
architecture computers.
VM comprises CP (Control Program) and CMS ({Conversational
Monitor System}) providing Hypervisor and personal computing
environments respectively. VM became most used in the early
1980s as a Hypervisor for multiple DOS/VS and DOS/VSE
systems and as IBM's internal operating system of choice. It
declined rapidly following widespread adoption of the IBM PC
and hardware partitioning in microcode on IBM mainframes
after the IBM 3090.
VM has been known as VM/SP (System Product, the successor to
CP/67), VM/XA, and currently as VM/ESA (Enterprise Systems
Architecture). VM/ESA is still in used in 1999, featuring a
web interface, Java, and DB2. It is still a major IBM
operating system.
(http://vmdev.gpl.ibm.com/).
["History of VM"(?), Melinda Varian, Princeton University].
(1999-10-31)
|
virtual machine/xa
(foldoc) | Virtual Machine
Virtual Machine/ESA
Virtual Machine/System Product
Virtual Machine/XA
VM
VM/ESA
VM/SP
VM/XA
(VM) An IBM pseudo-operating system
hypervisor running on IBM 370, ESA and IBM 390
architecture computers.
VM comprises CP (Control Program) and CMS ({Conversational
Monitor System}) providing Hypervisor and personal computing
environments respectively. VM became most used in the early
1980s as a Hypervisor for multiple DOS/VS and DOS/VSE
systems and as IBM's internal operating system of choice. It
declined rapidly following widespread adoption of the IBM PC
and hardware partitioning in microcode on IBM mainframes
after the IBM 3090.
VM has been known as VM/SP (System Product, the successor to
CP/67), VM/XA, and currently as VM/ESA (Enterprise Systems
Architecture). VM/ESA is still in used in 1999, featuring a
web interface, Java, and DB2. It is still a major IBM
operating system.
(http://vmdev.gpl.ibm.com/).
["History of VM"(?), Melinda Varian, Princeton University].
(1999-10-31)
|
|