In computer systems, the memory as it appears to, i.e., as it is available to, the operating programs running in the central processing unit (CPU).
Note: The virtual memory may be smaller, equal to, or larger than the real memory present in the system.

A network that provides virtual circuits and that is established by using the facilities of a real network.

A work environment in which employees work cooperatively from different locations using a computer network. [After 2382-pt.35] Synonym virtual workplace.

[An] information system (IS) password computed from a passphrase meeting the requirements of password storage (e.g., 64 bits). [INFOSEC-99]

See virtual circuit.

[A] protected information-system (IS) link utilizing tunneling, security controls (see information assurance), and end-point address translation giving the user the impression a dedicated line exists between nodes. [INFOSEC-99]

An interactive, computer-generated simulated environment with which users can interact using specialized peripherals such as data gloves and head-mounted computer-graphic displays.

The storage space that may be regarded as addressable main storage by the user of a computer system in which virtual addresses are mapped into real addresses.
Note: The size of virtual storage is limited by the addressing scheme of the computer system and by the amount of auxiliary storage available, and not by the actual number of main storage… (Read More →)

In open systems, an application service that (a) allows host terminals on a multi-user network to interact with other hosts regardless of terminal type and characteristics, (b) allows remote log-on by local-area-network managers for the purpose of management, (c) allows users to access information from another host processor for transaction processing, and (d) serves as a backup facility.

A structure designed for transport and switching of sub-STS-1 payloads. There are currently four sizes of VT. [T1.105-1988]