The Official First Resort Glossary of Internet
Terms
Look Up A Word
Click on the first letter of the word you wish to
look up.
Access Privileges - The
privilege to access and make changes to folders.
Address - The unique code assigned to the
location of a file in storage, a device in a system or
network, or any other data source on a network.
ADN (Advanced Digital Network) -- Usually
refers to a 56Kbps leased-line.
Anonymous FTP - A way to use the FTP program
to log on to another computer to copy files when you
don’t have an account on the other computer. When you
log on, enter anonymous as the username and your address
as the password. This gives you access to publicly
available files.
Applets - Mini-programs that can be downloaded
quickly and used by any computer equipped with a
Java-capable browser.
Archie A tool (software) for finding files
stored on anonymous FTP sites. You need to know the
exact file name or a substring of it.
ARPANet (Advanced Research Projects Agency
Network) -- The precursor to the Internet.
ASCII (American Standard Code for Information
Interchange) -- This is the de facto world-wide
standard for the code numbers used by computers to
represent all the upper and lower-case Latin letters,
numbers, punctuation, etc. There are 128 standard ASCII
codes each of which can be represented by a 7 digit
binary number: 0000000 through 1111111.
ATM (asynchronous transfer mode) - A
high-speed cell-switching networking technology that can
be scaled from 128 Mbps to more than six Gbps.
Backbone - A high-speed line or series of
connections that forms a major pathway within a network.
The term is relative as a backbone in a small network
will likely be much smaller than many non-backbone lines
in a large network.
Bandwidth - How much stuff you can send
through a connection. Usually measured in
bits-per-second. A full page of English text is about
16,000 bits. A fast modem can move about 15,000 bits in
one second. Full-motion full-screen video would require
roughly 10,000,000 bits-per-second, depending on
compression. The higher the bandwidth, the more
information - whether voice, video or data - that can
travel to your computer.
Baud (older term being replaced by bps - bits per
second): The number of signaling elements that can
be transmitted per second on a circuit. In common usage
the baud rate of a modem is how many bits it can send or
receive per second. Technically, baud is the number of
times per second that the carrier signal shifts value -
for example a 1200 bit-per-second modem actually runs at
300 baud, but it moves 4 bits per baud (4 x 300 = 1200
bits per second).
BBS (Bulletin Board System) -- A computerized
meeting and announcement system that allows people to
carry on discussions, upload and download files, and
make announcements without the people being connected to
the computer at the same time. There are many thousands
(millions?) of BBS's around the world, most are very
small, running on a single IBM clone PC with 1 or 2
phone lines. Some are very large and the line between a
BBS and a system like CompuServe gets crossed at some
point, but it is not clearly drawn.
Binhex (BINary HEXadecimal) -- A method for
converting non-text files (non-ASCII) into ASCII. This
is needed because Internet e-mail can only handle ASCII.
Bit (Binary DigIT) -- A single digit number in
base-2, in other words, either a 1 or a zero. The
smallest unit of computerized data. Bandwidth is usually
measured in bits-per-second.
BITNET (Because It's Time NETwork (or Because It's
There NETwork)) -- A network of educational sites
separate from the Internet, but e-mail is freely
exchanged between BITNET and the Internet. Listservs,
the most popular form of e-mail discussion groups,
originated on BITNET. BITNET machines are usually
mainframes running the VMS operating system, and the
network is probably the only international network that
is shrinking.
Bookmark - The ability from a browser to mark
a specific Web location for future use. That location
can be accessed directly from the bookmark list without
entering detailed address information.
BOT - "bot" is the colloquial term for
programs that listen and respond on an IRC channel to
conversation.
Bottleneck - A system capacity constraint that
may reduce traffic during peak load conditions.
Bps (Bits-Per-Second) -- A measurement of how
fast data is moved from one place to another. A 28.8
modem can move 28,800 bits per second.
Broadband - A high-capacity communications
circuit/path. It usually implies a speed greater than
1.544Mbps.
Browser - A client program (software) that is
used to looking at various kinds of Internet resources.
It permits browsing, retrieval and viewing of content
from the World Wide Web and intranets. It also gives you
a graphical interactive interface for searching,
finding, viewing and managing information over a
network.
BTW (By The Way) -- A shorthand appended to a
comment written in an online forum.
Byte - A set of Bits that represent a single
character. Usually there are 8 Bits in a Byte, sometimes
more, depending on how the measurement is being
made.
Capacity - The highest possible (reliable)
transmission speed that can be carried on a channel,
circuit or piece of equipment. Capacity may be expressed
as raw speed or net throughput.
Carrier - A telecommunications provider which
owns network switch equipment.
CATV Cable Television - Community Antenna
Television. A community television system, served by
cable and connected to a common (set of) antenna(s).
1994 Federal legislation may allow CATV providers to
compete for telephone service (on the Information
Superhighway).
CERN - The European Laboratory for Particle
Physics, site of the first World Wide Web conference and
considered the birthplace of WWW technology. Work on WWW
technology and setting standards has moved to the World
Wide Web Organization (W3O, at w3.org).
http://www.cern.ch/
CGI (Common Gateway Interface) -- The standard
for running programs on a server from a Web page.
Gateway programs, or scripts, are executable programs
which can be run by various (possibly very different)
information servers interchangably. Gateways conforming
to this specification can be written in any language
which produces an executable file. Some of the more
popular languages to use include: C or C++, Perl,
Python, TCL, shells, and many others.
Some of the most common CGI scripts found on the Web
are programs which process the information a user might
enter on a form or whenever an imagemap is "clicked" on.
cgi-bin - The most common name of a directory
on a web server in which CGI programs are stored. The
"bin" part of "cgi-bin" is a shorthand version of
"binary", because once upon a time, most programs were
refered to as "binaries". In real life, most programs
found in cgi-bin directories are text files -- scripts
that are executed by binaries located elsewhere on the
same machine.
Channel - A telecommunications path (pipe) of
a specific capacity (speed) between two locations in a
network.
Chat - "Chat" is a term used to describe
real-time conferencing. For example, IRC, "WebChat",
Prodigy and AOL chat rooms are all examples of "chat".
Client - A software program that is used to
contact and obtain data from a Server software program
on another computer, often across a great distance. Each
Client program is designed to work with one or more
specific kinds of Server programs, and each Server
requires a specific kind of Client. A Web Browser is a
specific kind of Client.
com - When these letters appear at the end of
an address, they indicate that the host computer is run
by a company rather than a university or government
agency. It also means that the host computer is most
likely located in the U.S.
Common Carrier - A carrier that holds itself
out as serving the public (or a segment thereof)
indifferently (i.e., without regard to the identity of
the customer and without undue discrimination).
Communication Link -A system of hardware and
software connecting two end users.
Compression / Decompression - A method of
encoding/decoding signals that allows transmission (or
storage) of more information than the media would
otherwise be able to support.
Connection - A point-to-point dedicated or
switched communication path.
Cookies - A mechanism for server-side
connections to store and retrieve information on the
client side.
Cyberpunk - Cyberpunk was originally a
cultural sub-genre of science fiction taking place in a
not-so-distant, dystopian, over-industrialized society.
The term grew out of the work of William Gibson and
Bruce Sterling and has evolved into a cultural label
encompassing many different kinds of human, machine, and
punk attitudes. It includes clothing and lifestyle
choices as well.
Cyberspace - Originally used in "Neuromancer,"
William Gibson's novel of direct brain-computer
networking, refers to the collective realms of
computer-aided communication.
Database - A multiuser collection of
information. Often supports random access selectivity
and multiple "views" or levels of abstraction of the
underlying data.
Dedicated Line - A private line leased from a
telecommunications carrier.
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.
Digital - A device or method that uses
discrete variations in voltage, frequency, amplitude,
location, etc. to encode, process, or carry binary (zero
or one) signals for sound, video, computer data or other
information.
DNS - The Domain Name System, a system
for translating computer names into numeric Internet
addresses.
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.
Usually, all of the machines on a given Network will
have the same thing as the right-hand portion of their
Domain Names, e.g. gateway.gbnetwork.com
mail.gbnetwork.com www.gbnetwork.com and so on. 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.
.com .edu .mil .gov .net .org
Download - To transfer programs or data from a
computer to a connected device, usually from a server to
a personal computer
Drag and Drop - A GUI (Graphic User Interface)
concept that allows one screen object to be selected and
passed as input to another screen object (icon).
E-mail (Electronic Mail) -- Messages, usually
text, sent from one person to another via computer.
E-mail can also be sent automatically to a large number
of addresses (Mailing List).
edu - When these letters appear at the end of
an address, they indicate that the host computer is run
by an educational institution. It also means that the
host computer is most likely located in the U.S.
Ethernet - A very common method of networking
computers in a LAN. Ethernet will handle about
10,000,000 bits-per-second and can be used with almost
any kind of computer.
FAQ (Frequently Asked Questions) -- FAQs are
documents that list and answer the most common questions
on a particular subject. There are hundreds of FAQs on
subjects as diverse as Pet Grooming and Cryptography.
FAQs are usually written by people who have tired of
answering the same question over and over.
FDDI (Fiber Distributed Data Interface) -- A
standard for transmitting data on optical fiber cables
at a rate of around 100,000,000 bits-per-second (10
times as fast as Ethernet, about twice as fast as T-3).
File extensions - See the following listings:
JPG, GIF, WAV, AVI
File Server - A computer that provides access
to files for remote users (clients).
Finger - An Internet software tool for
locating people on other Internet sites. Finger is also
sometimes used to give access to non-personal
information, but the most common use is to see if a
person has an account at a particular Internet site.
Many sites do not allow incoming Finger requests, but
many do.
Finger Protocol - which allows finding
information about the users on your host network. Some
networks do not allow fingering from an external system,
and some do not allow fingering at all.
Fire Wall - A combination of hardware and
software that separates a LAN into two or more parts for
security purposes. A system or set of systems through
which all traffic between an internal network and an
external network (usually the Internet) must pass. A
firewall allows only authorized traffic to continue to
the other side, where "authorized" is defined by the
Flame - Originally, flame meant to carry forth
in a passionate manner in the spirit of honorable
debate. Flames most often involved the use of flowery
language and flaming well was an art form. More recently
flame has come to refer to any kind of derogatory
comment no matter how witless or crude.
Flame War - When an online discussion
degenerates into a series of personal attacks against
the debators, rather than discussion of their positions.
A heated exchange.
Frame Relay - A wide area network technology
that breaks data into variable-length frames and
allocates bandwidth by demand.
FTP (File Transfer Protocol) -- A very common
method of moving files between two Internet sites. FTP
is a special way to login to another Internet site for
the purposes of retrieving and/or sending files. There
are many Internet sites that have established publicly
accessible repositories of material that can be obtained
using FTP, by logging in using the account name
anonymous, thus these sites are called anonymous ftp
servers.
Gateway Protocol converter - An
application-specific node that connects otherwise
incompatible networks. Converts data codes and
transmission protocols to enable interoperability.
Gateway - The technical meaning is a hardware
or software set-up that translates between two
dissimilar protocols, for example Prodigy has a gateway
that translates between its internal, proprietary e-mail
format and Internet e-mail format. Another, sloppier
meaning of gateway is to describe any mechanism for
providing access to another system, e.g. AOL might be
called a gateway to the Internet.
GIF Graphics Interchange Format - GIF is a
standard format for image files on the WWW. The GIF file
format is popular because it uses a compression method
to make files smaller.
Gopher - A widely successful method of making
menus of material available over the internet. Gopher is
a Client and Server style program, which requires that
the user have a Gopher Client program. Although Gopher
spread rapidly across the globe in only a couple of
years, it has been largely supplanted by Hypertext, also
known as WWW (World Wide Web). There are still thousands
of Gopher Servers on the Internet and we can expect they
will remain for a while.
GUI - Graphical User Interface.
Home - The startup page of a site, containing
identity and index information.
Host - Any computer on a network that is a
repository for services available to other computers on
the network. It is quite common to have one host machine
provide several services, such as WWW and USENET.
HTML (HyperText Markup Language) -- The coding
language used to create Hypertext documents for use on
the World Wide Web. HTML looks a lot like old-fashioned
typesetting code, where you surround a block of text
with codes that indicate how it should appear,
additionally, in HTML you can specify that a block of
text, or a word, is linked to another file on the
Internet. HTML files are meant to be viewed using a
World Wide Web Client Program, such as Netscape or
Mosaic.
HTTP (hypertext transfer protocol) - The
protocol for moving hypertext files across the Internet.
Requires a HTTP client program on one end, and an HTTP
server program on the other end. HTTP is the most
important protocol used in the World Wide Web (WWW).
Hyperlink - Connections between one piece of
information and another.
Hypermedia - A method of presenting
information in discrete units, or nodes, that are
connected by links. The information may be presented
using a variety of media such as text, graphics, audio,
video, animation, image or executable documentation.
Hypertext - Describes a type of interactive
online navigation functionality. Links (URLs) embedded
in words or phrases allows the user to select (e.g.
mouse click) text and immediately display related
information and multimedia material. Generally, any text
that contains links to other documents - words or
phrases in the document that can be chosen by a reader
and which cause another document to be retrieved and
displayed.
Icon - The graphical symbol from the Windows
or other graphical desktop that allows a quick access to
an application software product.
IMHO (In My Humble Opinion) -- A shorthand
appended to a comment written in an online forum, IMHO
indicates that the writer is aware that they are
expressing a debatable view, probably on a subject
already under discussion. One of may such shorthands in
common use online, especially in discussion forums.
Information Superhighway - A Buzz word. (see
also - Media Hype) Refers to the Clinton/Gore
administration plan to deregulate communication services
allowing for the integration of all aspects of the
Internet, CATV, telephone, business, entertainment,
information providers, education, etc.
internet - (Lower case i) Any time you connect
2 or more networks together, you have an internet - as
in inter-national or inter-state.
Internet (Upper case I) The vast collection of
inter-connected networks that all use the TCP/IP
protocols and that evolved from the ARPANET of the late
60's and early 70's. The Internet now (July 1995)
connects roughly 60,000 independent networks into a vast
global internet.
INTERNIC - The Internet-based index
maintaining all unique Domain Name listings.
Intranet - A private network inside a company
or organization that uses the same kinds of software
that you would find on the public Internet, but that is
only for internal use. As the Internet has become more
popular many of the tools used on the Internet are being
used in private networks, for example, many companies
have web servers that are available only to employees.
Note that an "Intranet" may not actually be an Internet,
it may simply be a network.
IP (Internet Protocol) - The Internet protocol
that defines the unit of information passed between
systems that provides a basis packet delivery service.
IP Address - The Internet protocol address
which is a 32-bit address assigned to a host. The IP
Address (www.firstres.com is First Resort server’s IP
address) IP address has a host component and a network
component.
IP Number - Sometimes called a dotted quad. A
unique number consisting of 4 parts separated by dots,
e.g. 165.113.245.2 Every machine that is on the Internet
has a unique IP number - if a machine does not have an
IP number, it is not really on the Internet. Most
machines also have one or more Domain Names that are
easier for people to remember.
IRC (Internet Relay Chat) -- Basically a huge
multi-user live chat facility. There are a number of
major IRC servers around the world which are linked to
each other. Anyone can create a channel and anything
that anyone types in a given channel is seen by all
others in the channel. Private channels can (and are)
created for multi-person conference calls.
ISDN (Integrated Services Digital Network) --
Basically a way to move more data over existing regular
phone lines. ISDN is rapidly becoming available to much
of the USA and in most markets it is priced very
comparably to standard analog phone circuits. It can
provide speeds of roughly 128,000 bits-per-second over
regular phone lines. In practice, most people will be
limited to 56,000 or 64,000 bits-per-second. A set of
standards for high-speed transmission of simultaneous
voice, data and video information over fewer channels
than would otherwise be needed, through the use of
out-of-band signaling.
ISP (Internet Service Provider) -- An
institution that provides access to the Internet in some
form, usually for money.
Java - Java is a new programming language
invented by Sun Microsystems that is specifically
designed for writing programs that can be safely
downloaded to your computer through the Internet and
immediately run without fear of viruses or other harm to
your computer or files. Using small Java programs
(called "Applets"), Web pages can include functions such
as animations, calculators, and other fancy tricks. We
can expect to see a huge variety of features added to
the Web using Java, since you can write a Java program
to do almost anything a regular computer program can do,
and then include that Java program in a Web page. A
programming language developed by Sun Microsystems.
Applets written in Java include their own software
players, so you can download and run them on any
computer.
Java applet - A small program, similar to
object-oriented C programs, designed to accomplish a
single or limited function. Applets can be imbedded in
HTML pages to operate when selected by a browser
software that supports such programs.
JPEG Joint Photographic Experts Group - One of
two types of graphic formats used on the World Wide Web,
the other being a GIF. The benefit of using JPG images
is the higher color and resolution you can have which is
16 million colors as opposed to the 256 color
limitations of GIF files. JPEG is an algorithm for
compressing still images. Motion-JPEG, a variation of
JPEG, is used to compress moving images.
Kilobyte - A thousand bytes. Actually, usually
1024 (2^10) bytes.
56k Line - A digital phone-line connection
(leased line) capable of carrying 56,000
bits-per-second. At this speed, a Megabyte will take
about 3 minutes to transfer. This is 4 times as fast as
a 14,400bps modem.
LAN (Local Area Network) -- A computer network
limited to the immediate area, usually the same building
or floor of a building. A network in which all hosts are
in close physical proximity (roughly, within the same
building or set of adjacent buildings).
Leased-line - Refers to a phone line that is
rented for exclusive 24-hour, 7 -days-a-week use from
your location to another location. The highest speed
data connections require a leased line.
Link - See Hyperlink.
List-Serv - "ListServ" is a free software
program for automating the maintenance and delivery of
e-mail mailing lists. There are mailing lists for many
different topics - some lists are "open" (which means
anyone on the list can send a message to the whole list,
as in a conversation), and some are "closed" (only
certain people can post information to them). The most
common kind of maillist, Listservs originated on BITNET
but they are now common on the Internet.
Login - Noun or a verb. Noun: The account name
used to gain access to a computer system. Not a secret
(contrast with Password). Verb: The act of entering into
a computer system, e.g. Login to the WELL and then go to
the GBN conference.
Maillist (or Mailing List) - A (usually
automated) system that allows people to send e-mail to
one address, whereupon their message is copied and sent
to all of the other subscribers to the maillist. In this
way, people who have many different kinds of e-mail
access can participate in discussions together.
Media - Information storage and distribution
format (e.g. video tape, floppy disk, optical disk
storage).
Megabyte - A million bytes. A thousand
kilobytes.
MIME (Multipurpose Internet Mail Extensions)
-- The standard for attaching non-text files to
standard Internet mail messages. Non-text files include
graphics, spreadsheets, formatted word-processor
documents, sound files, etc. An email program is said to
be MIME Compliant if it can both send and receive files
using the MIME standard. When non-text files are sent
using the MIME standard they are converted (encoded)
into text - although the resulting text is not really
readable. Generally speaking the MIME standard is a way
of specifying both the type of file being sent (e.g. a
Quicktime(TM) video file), and the method that should be
used to turn it back into its original form. Besides
email software, the MIME standard is also universally
used by Web Servers to identify the files they are
sending to Web Clients, in this way new file formats can
be accommodated simply by updating the Browsers' list of
pairs of MIME-Types and appropriate software for
handling each type.
Mirror - An FTP server that provides copies of
the same files as another server. Some FTP servers are
so popular that other servers have been set up to mirror
them and spread the FTP load to more than one site.
Modem (MOdulator, DEModulator) -- A device
that you connect to your computer and to a phone line,
that allows the computer to talk to other computers
through the phone system. Basically, modems do for
computers what a telephone does for humans. End user
computer interface that enables digital data to be
transmitted over analog transmission facilities like
phone lines.
MOO (Mud, Object Oriented) -- One of several
kinds of multi-user role-playing environments, so far
only text-based.
Mosaic - The first WWW browser that was
available for the Macintosh, Windows, and UNIX all with
the same interface. Mosaic really started the popularity
of the Web. The source-code to Mosaic has been licensed
by several companies and there are several other pieces
of software as good or better than Mosaic, most notably,
Netscape.
MPEG Moving Pictures Expert Group- . MPEG is a
standard way to compress full-motion video.
MUD (Multi-User Dungeon or Dimension) -- A
(usually text-based) multi-user simulation environment.
Some are purely for fun and flirting, others are used
for serious software development, or education purposes
and all that lies in between. A significant feature of
most MUDs is that users can create things that stay
after they leave and which other users can interact with
in their absence, thus allowing a world to be built
gradually and collectively.
Multimedia - Computer systems that integrate
audio, video and data.
MUSE (Multi-User Simulated Environment) -- One
kind of MUD - usually with little or no violence.
Name Resolution - The process of mapping a
name into its corresponding address.
NCSA - The National Center for Supercomputing
Applications is an educational institute. The Mosaic web
browser was created here. http://www.ncsa.uiuc.edu/
Netiquette - The etiquette on the Internet.
Netizen - Derived from the term citizen,
referring to a citizen of the Internet, or someone who
uses networked resources. The term connotes civic
responsibility and participation.
Netscape - A WWW Browser and the name of a
company. The Netscape (tm) browser was originally based
on the Mosaic program developed at the National Center
for Supercomputing Applications (NCSA). Netscape has
grown in features rapidly and is widely recognized as
the best and most popular web browser. Netscape
corporation also produces web server software. Netscape
provided major improvements in speed and interface over
other browsers, and has also engendered debate by
creating new elements for the HTML language used by Web
pages -- but the Netscape extensions to HTML are not
universally supported. The main author of Netscape, Mark
Andreessen, was hired away from the NCSA by Jim Clark,
and they founded a company called Mosaic Communications
and soon changed the name to Netscape Communications
Corporation.
Network - A system of interrelated elements
that are interconnected in a dedicated or switched
linkage to provide local or remote communication (of
voice, video, data, etc.) and to facilitate the exchange
of information between users with common interests. Any
time you connect 2 or more computers together so that
they can share resources, you have a computer network.
Connect 2 or more networks together and you have an
internet.
Newsgroup The name for discussion groups on
USENET.
NIC (Networked Information Center) -
Generally, any office that handles information for a
network. The most famous of these on the Internet is the
Internic, which is where new domain names are
registered.
Node - Any single computer connected to a
network.
packet - A contiguous sequence of bits or
bytes that make up all or part of a message communicated
on a network.
Packet Switching - The method used to move
data around on the Internet. In packet switching, all
the data coming out of a machine is broken up into
chunks, each chunk has the address of where it came from
and where it is going. This enables chunks of data from
many different sources to co-mingle on the same lines,
and be sorted and directed to different routes by
special machines along the way. This way many people can
use the same lines at the same time.
Page - A hypermedia document on the web.
Password - A code used to gain access to a
locked system. Good passwords contain letters and
non-letters and are not simple combinations such as
virtue7. A good password might be: Hot$1-6
PERL - An acronym for practical extraction
reporting language. Created by Larry Wall (MIT),
specifically for string parsing and comparing. Most
commonly used as a CGI scripting language. It will most
likely be replaced by a client-side language such as Sun
Microsystem's Java which doesn't rely on the server to
perform all computations.
PING - A network management tool that checks
to see whether you can communicate with another computer
on the Internet. It sends a short message to which the
other computer automatically responds. If the other
computer does not respond to the ping, you usually
cannot establish communications.
PKZIP - PKZIP is a shareware compression
utility for PCs. A program called PKUNZIP is used to
decompress these files.
Pointer - An address (URL) embedded in data
that specifies the location of data in another record or
file. A hyperlink is an example of a pointer.
POP - Two commonly used meanings: Point of
Presence and Post Office Protocol. A Point of Presence
usually means a city or location where a network can be
connected to, often with dialup phone lines. So if an
Internet company says they will soon have a POP in
Belgrade, it means that they will soon have a local
phone number in Belgrade and/or a place where leased
lines can connect to their network. A second meaning,
Post Office Protocol refers to the way e-mail software
such as Eudora gets mail from a mail server. When you
obtain a SLIP, PPP,or shell account you almost always
get a POP account with it, and it is this POP account
that you tell your e-mail software to use to get your
mail.
Port - 3 meanings. First and most generally, a
place where information goes into or out of a computer,
or both. E.g. the serial port on a personal computer is
where a modem would be connected. On the Internet port
often refers to a number that is part of a URL,
appearing after a colon (:) right after the domain name.
Every service on an Internet server listens on a
particular port number on that server. Most services
have standard port numbers, e.g. Web servers normally
listen on port 80. Services can also listen on
non-standard ports, in which case the port number must
be specified in a URL when accessing the server, so you
might see a URL of the form:
gopher://peg.cwis.uci.edu:7000/ shows a gopher server
running on a non-standard port (the standard gopher port
is 70). Finally, port also refers to translating a piece
of software to bring it from one type of computer system
to another, e.g. to translate a Windows program so that
is will run on a Macintosh.
Posting - A single message entered into a
network communications system.
PPP (Point to Point Protocol) -- Most well
known as a protocol that allows a computer to use a
regular telephone line and a modem to make TCP/IP
connections and thus be really and truly on the
Internet. Dial-up Internet connection speaking in TCP/IP
protocol, somewhat faster than SLIP. A protocol for
making IP connections over a telephone line.
Protocol - An agreed upon sequence of bits,
bytes or characters exchanged between programs for
purposes of transmitting and receiving information.
Real Time - Rapid transmission and processing
of event-oriented data and transactions as they occur,
in contrast to being stored and re-transmitted or
processed as batches.
RFC (Request For Comments) -- The name of the
result and the process for creating a standard on the
Internet. New standards are proposed and published on
line, as a Request For Comments. The Internet
Engineering Task Force is a consensus-building body that
facilitates discussion, and eventually a new standard is
established, but the reference number/name for the
standard retains the acronym RFC, e.g. the official
standard for e-mail is RFC 822.
Robot - "Robot"s are usually mentioned in the
context of the WWW as programs which traverse the web
looking for information, perhaps for indexing into a
search engine or to find errors in web sites or some
such.
Router - A machine that forwards packets from
one network to another. A special-purpose computer (or
software package) that handles the connection between 2
or more networks. Routers spend all their time looking
at the destination addresses of the packets passing
through them and deciding which route to send them on.
Search Engines - Software available on the
Internet to search through existing sites to locate
information. Examples of popular search engines are:
Yahoo, Alta Vista, Lycos, etc.
Server - A computer which provides some
service for other computers connected to it via a
network. The most common example is a frile server which
has a local disk and services requests from remote
clients to read and write files on that disk. It can
also be a program which provides some service to other
client programs. The connection between client and
server is normally by means of message passing, often
over a network, and uses some protocol to encode the
client's requests and the server's responses. There are
many servers associated with the Internet.
SGML - Standard Generalized Markup Language is
a language for describing other tag-based structural
document languages. For example, HTML is defined using
SGML.
Signal An event - oriented change in state
(e.g. a tone, frequency shift, binary value, alarm,
message, etc.).
Site - Address location of a server on the
Internet.
SLIP (Serial Line Internet Protocol) -- A
standard for using a regular telephone line (a serial
line) and a modem to connect a computer as a real
Internet site. SLIP is gradually being replaced by PPP.
Dial-up Internet connection speaking in TCP/IP protocol.
SMDS (Switched Multimegabit Data Service) -- A
new standard for very high-speed data transfer. Subset
of proposed ATM specifications that lets users
dynamically configure data networks to match traffic
patterns.
SMTP (Simple Mail Trnasfer Protocol) - A
protocol used to transfer e-mail between computers.
Socket - When your computer is on the Internet
via a SLIP connection, a socket is a conversation your
computer is having with a computer elsewhere on the net.
You may have one socket for an FTP session, another
socket for a Telnet session, and another socket taking
care of getting your mail.
Spam (or Spamming) - An inappropriate attempt
to use a mailing list, or USENET or other networked
communications facility as if it was a broadcast medium
(which it is not) by sending the same message to a large
number of people who didn't ask for it. The term
probably comes from a famous Monty Python skit which
featured the word spam repeated over and over. The term
may also have come from someone's low opinion of the
food product with the same name,which is generally
perceived as a generic content-free waste of resources.
(Spam is a registered trademark of Hormel Corporation,
for its processed meat product.) E.g. Mary spammed 50
USENET groups by posting the same message to each.
SSL (The Secure Socket Layer) - is a protocol
that Netscape uses to provide people with secure
transactions over the network.
STT (Secure Transaction Technology) - The STT
specification is a software technology designed to
provide a secure method for handling credit card
transactions across electronic networks.
Sysop (System Operator) -- Anyone responsible
for the physical operations of a computer system or
network resource. A System Administrator decides how
often backups and maintenance should be performed and
the System Operator performs those tasks.
T-1 - A leased-line connection capable of
carrying data at 1,544,000 bits-per-second. At maximum
theoretical capacity, a T-1 line could move a megabyte
in less than 10 seconds. That is still not fast enough
for full-screen, full-motion video, for which you need
at least 10,000,000 bits-per-second. T-1 is the fastest
speed commonly used to connect networks to the
Internet.
T-3 -A leased-line connection capable of
carrying data at 44,736,000 bits-per-second. This is
more than enough to do full-screen, full-motion video.
TCP/IP (Transmission Control Protocol/Internet
Protocol) -- This is the suite of protocols that
defines the Internet. Originally designed for the UNIX
operating system, TCP/IP software is now available for
every major kind of computer operating system. To be
truly on the Internet, your computer must have TCP/IP
software. The driver software that connects PCS and
networks to the Internet.
Telnet - Telnet is a network program that
offers a way to log into and work from another computer.
By logging into another system, users can access
Internet services that they might not have on their own
computers. The command and program used to login from
one Internet site to another. The telnet command/program
gets you to the login: prompt of another host.
Terminal - A device that allows you to send
commands to a computer somewhere else. At a minimum,
this usually means a keyboard and a display screen and
some simple circuitry. Usually you will use terminal
software in a personal computer - the software pretends
to be (emulates) a physical terminal and allows you to
type commands to a computer somewhere else.
Terminal Server - A special purpose computer
that has places to plug in many modems on one side, and
a connection to a LAN or host machine on the other side.
Thus the terminal server does the work of answering the
calls and passes the connections on to the appropriate
node. Most terminal servers can provide PPP or SLIP
services if connected to the Internet.
TTFN (Ta Ta For Now) -- A shorthand appended
to a comment written in an online forum.
UNIX - A computer operating system (the basic
software running on a computer, underneath things like
word processors and spreadsheets). UNIX is designed to
be used by many people at the same time (it is
multi-user) and has TCP/IP built-in. It is the most
common operating system for servers on the Internet.
UNZIP - To unzip a file means to decompress,
or expand a file that has been made smaller using a
compression utility.
URL (Uniform Resource Locator) -- The standard
way to give the address of any resource on the Internet
that is part of the World Wide Web (WWW). A URL looks
like this: http://www.matisse.net/seminars.html or
telnet://well.sf.ca.us or ws:new.newusers.questions etc.
The most common way to use a URL is to enter into a WWW
browser program, such as Netscape, or Lynx. The form of
the site address that reveals the name of the server
where the site's files are stored, the file's directory
path, and its file name. A URL is a sequence of
characters used to denote the means for retrieving a
specific document or a piece of content from a server on
the Web.
Usenet (USEer NETwork) - Internet newsgroups.
One of the earliest forms of "group electronic mail,"
currently at a level of about 10,000 different
newsgroups. A world-wide system of discussion groups,
with comments passed among hundreds of thousands of
machines. Not all USENET machines are on the Internet,
maybe half.
UUCP Unix-to-Unix Copy - A file copying
facility between Unix systems, on which mail and USENET
news services were built. While UUCP is still used (and
is somewhat useful) the Internet provides a better way
to do the same job.
UUENCODE (Unix to Unix Encoding) -- A method
for converting files from Binary to ASCII (text) so that
they can be sent across the Internet via e-mail.
Veronica - (Very Easy Rodent Oriented Net-wide
Index to Computerized Archives) -- Developed at the
University of Nevada, Veronica is a constantly updated
database of the names of almost every menu item on
thousands of gopher servers. The Veronica database can
be searched from most major gopher menus.
VRML - Virtual Reality Modeling Language A
"tag" language in which web pages are formatted that can
support 3D graphics and interactive spatial navigation.
WAIS (Wide Area Information Server) - A
powerful system for searching large amounts of
information very quickly over the Internet.
WAN (Wide Area Network) - Any internet or
network that covers an area larger than a single
building or campus.
WAV - "wav" is the file extension used on some
types of audio files.
Web Server - A networked host computer that
contains HTML pages and possibly other forms of content
served to clients via HTTP.
Web site - The same as a Home Page.
Web - Web, used as a noun, is shorthand for
the World Wide Web.
Webmaster/Webmistress - System operator for a
web site server.
Wideband - A medium-capacity communications
circuit/path. It usually implies a speed from 64Kbps to
1.544Mbps.
WinSock (Windows Socket) - Windows Sockets is
a standard way for Windows-based programs to work with
TCP/IP. You can use WinSock if you use SLIP to connect
to the Internet.
WINZIP - Winzip is a compression utility that
lets Windows 95, 3.1, and NT users make their files
smaller for faster tranfer over the Internet. This
utility also decompresses files that were originally
compressed using PKZIP or TAR formats.
http://www.winzip.com/winzip/
WWW (World Wide Web) - Internet system for
world-wide hypertext linking of multimedia documents,
making the relationship of information that is common
between documents easily accessible and completely
independent of physical location.
ZIP - When one "compresses" (i.e., makes a
smaller but equal copy) a file using "pkzip", the
resulting file is called a "zip" file. It usually ends
with the file extension ".zip".
Revised - 8/13/96
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