HP Compaq t1010, Дополнительное руководство

Страница: 302 / 320

306
Glossary
DHCP The Dynamic Host Configuration Protocol (DHCP) provides
configuration parameters to Internet hosts. DHCP consists of
two components: a protocol for delivering host-specific
configuration parameters from a DHCP server to a host and a
mechanism for allocation of network addresses to hosts.
DHCP is built on a client-server model, where designated DHCP
hosts allocate network addresses and deliver configuration
parameters to dynamically configured hosts. The term “server”
refers to a host providing initialization parameters through
DHCP, and the term “client” refers to a host requesting
initialization parameters from a DHCP server
DNS Domain Name Service. A general-purpose distributed,
replicated, data query service chiefly used on the Internet for
translating host names into Internet addresses.
Download To transfer data from a processing unit to an attached device.
For example, from a host to the terminal.
DSR Data Set Ready. A hardware signal sent by a communications
device to indicate readiness to send and receive data. This
signal is used in serial connections.
DTE Data Terminal Equipment. A device that acts as the source and/
or destination of data and which controls the communication
channel. DTE includes terminals, computers, protocol
converters, and multiplexors. DTE is usually connected via an
RS-232 serial line to Data Communication Equipment (DCE).
DTR Data Terminal Ready. A hardware signal sent by a terminal to
indicate readiness to send and receive data. This signal is used
in serial connections.
Ethernet A baseband local area network specification developed jointly
by Digital Equipment Corp., Xerox, and Intel to interconnect
computer equipment using coaxial cable and transceivers. An
Ethernet LAN provides millions of bits per second of capacity for
high-speed terminal-to-computer communication or
computer-to-computer file transfer.
FCC Federal Communications Commission. The Government body
that regulates all telecommunications originating in the U.S.,
including transmission over telephone lines.
Firmware A computer program or software stored permanently in a PROM
or ROM or semi-permanently in an EPROM.