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Digerati
The
digital version of literati, it is a reference to a vague cloud
of people seen to be knowledgeable, hip, or otherwise in-the-know
in regards to the digital revolution.
DSL
(Digital
Subscriber Line) -- A method for moving data over regular phone
lines. A DSL circuit is much faster than a regular phone connection,
and the wires coming into the subscriber’s premises are the same
(copper) wires used for regular phone service. A DSL circuit must
be configured to connect two specific locations, similar to a
leased line.
A commonly discussed configuration of DSL allows downloads at
speeds of up to 1.544 megabits (not megabytes)
per second, and uploads at speeds of 128 kilobits per second.
This arrangement is called ADSL: “Asymmetric” Digital Subscriber
Line.
Another common configuration is symmetrical: 384 Kilobits per
second in both directions.
In theory ADSL allows download speeds of up to 9 megabits per
second and upload speeds of up to 640 kilobits per second.
DSL is now a popular alternative to Leased Lines and ISDN,
being faster than ISDN and less costly than traditional Leased
Lines.
See Also:
bit , bps
, ISDN , Leased Line
Domain
Name
The
unique name that identifies an Internet site. Domain Names always
have 2 or more parts, separated by dots. The part on the left
is the most specific, and the part on the right is the most general.
A given machine may have more than one Domain Name but a given
Domain Name points to only one machine. For example, the domain
names:
matisse.net
mail.matisse.net
workshop.matisse.net
can all refer to the same machine, but each domain name can refer
to no more than one machine.
Usually, all of the machines on a given Network will have
the same thing as the right-hand portion of their Domain Names
(matisse.net in the examples above). It is also
possible for a Domain Name to exist but not be connected to an
actual machine. This is often done so that a group or business
can have an Internet e-mail address without having to establish
a real Internet site. In these cases, some real Internet machine
must handle the mail on behalf of the listed Domain Name.
See Also:
IP Number
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