Digital Equipment AlphaServer 2000, Owner'S Manual

Page: 185 / 196

thickwire
One-half inch, 50-Ohm coaxial cable that interconnects the
components in many IEEE standard 802.3-compliant Ethernet
networks.
ThinWire
Ethernet cabling and technology used for local distribution
of data communications. ThinWire cabling is thinner than
thickwire cabling.
Token Ring
A network that uses tokens to pass data sequentially. Each node
on the network passes the token on to the node next to it.
twisted pair
A cable made by twisting together two insulated conductors that
have no common covering.
uninterruptible power supply (UPS)
A battery-backup option that maintains AC power to a computer
system if a power failure occurs.
warm bootstrap
A subset of the cold bootstrap operation. On AlphaGeneration
systems, during a warm bootstrap, the console does not load
PALcode, size memory, or initialize environment variables.
wide area network (WAN)
A high-speed network that connects a server to a distant host
computer, PC, or other server, or that connects numerous
computers in numerous distant locations.
Windows NT
‘‘New technology’’ operating system owned by Microsoft, Inc.
The AlphaServer systems currently support the Windows NT,
OpenVMS, and DEC OSF/1 operating systems.
write back
A cache management technique in which data from a write
operation to cache is written into main memory only when the
data in cache must be overwritten.
Glossary–17