Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


VM

(1) See voicemail.

(2) (Virtual Machine) One instance of an operating system and applications in a virtualized environment. See virtual machine.

(3) (Virtual Machine) A runtime engine for a development platform. Examples are the Java Virtual Machine and the .NET Common Language Runtime (CLR). See runtime engine.

(4) (Virtual Machine) The first virtualized OS for IBM mainframes. VM runs multiple IBM operating systems of any type, each with their own applications. Originally developed by a separate research arm of the company, VM later became mainstream in the 1970s. In 2000, IBM introduced z/VM for the 64-bit z/Architecture.

VM-CP and CMS
VM-Control Program (VM-CP) is the "hypervisor" that provides the virtual machine functionality. Conversational Monitor System (CMS) is a compact guest operating system that is widely used with VM to provide interaction for one user. Each user communicates with CMS in a separate virtual machine in the computer. For more information, visit www.vm.ibm.com. See CP/CMS and virtual machine.



Personal Use Only

Before/After Your Search Term
BeforeAfter
VLEVM/386
VLERVM-aware network
VLFVM Channel
VLIWVM-CMS
vlogVM-CP
vloggerVM escape
vloggingVM Player
VLPVM/SP
VLRVM sprawl
VLSIVM86 Mode

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design