Panasonic FP-D250, Руководство пользователя

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Glossary
of Terms
UTP (Unshielded Twisted Pair) The standard cabling used for telephone lines. The
standard IEEE 802.3, 10BaseT, defines use of Ethernet over UTP for rates up to
10Mbit/s. The general LAN medium of choice for the 1990s, UTP is marketed in
brands such as AT&T’s PDS (Systimax) and OSCA.
V
Van (Value Added Network)/Vans (Value Added Network Service) A data transmission
network which guarantees data security and integrity through added computer control
and communications, from the sender to the recipient often in the manner of a door-
to-door courier or freight forwarder.
Vaporware Products announced but not yet commercially available. Often used by
suppliers to lock users in with the promise of great things to come.
Vines Banyan Systems Virtual Networking operating system is based on Unix system
V. This network operating system provides transparent communication across
heterogeneous networks and is more expansive in concept, although attracting far
fewer users, than Novell’s NetWare.
Volatile Storage Computer storage that is erased when the power is turned off.
V.42 Error control procedures.
V.42 bis Data compression technique for use with V.42
VTAM (Virtual Telecommunications Access Method) An IBM software routine: the
virtual access method for 3270 systems.
W
WAN (Wide Area Network) A network which covers a larger geographical area than
a LAN and where telecommunications links are implemented, normally leased from
the appropriate PTO(s). Examples of WANs include packet switched networks, public
data networks and Value Added Networks.