virtual machine environment
virtual machine/conversational monitor system
virtual machine/esa
virtual machine/system product
virtual machine/xa
Англо-русский словарь компьютерных терминов:
virtual machine
(VM) виртуальная машина
абстрактный компьютер, работа которого реализуется (эмулируется) на реальной машине с помощью программных и/или аппаратных средств. Наиболее известная концепция виртуальной машины была предложена корпорацией IBM в начале 1980-х годов в её ОС для мэйнфреймов
Смотри также:
CLR
,
JVM
Например:
Each IBM user ran their own virtual machine completely isolated from all other virtual machines so there were no security problems — Каждый пользователь IBM работал с собственной виртуальной машиной, полностью изолированной от всех других виртуальных машин, так что проблемы безопасности были исключены
Англо-русский политехнический словарь:
virtual machine
виртуальная (вычислительная) машина
Free On-line Dictionary of Computing:
virtual machine
(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
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)
