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internet and web related terms and definitions by alphabetical order.
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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.
Baud
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.
CGI
(Common Gateway Interface) A Web server scripting standard; a mechanism
used to connect script to Web servers. In the past, most CGI programs were
actually script files and were often written in scripting languages like PERL.
Today, scripts can also be executable programs. You can write scripts in C and
Visual Basic.
Co-location
Most often used to refer to having a server that belongs to one person
or group physically located on an Internet-connected network that belongs to
another person or group. Usually this is done because the server owner wants
their machine to be on a high-speed Internet connection and/or they do not want
the security risks of having the server on their own network.
Dial-up
Dial-up describes the kind of connection you have if you dial a number
through your computer to connect to your ISP. Dial-up differentiates standard
phone line connections from other, higher speed lines that maintain a constant
connection between two points, such as T1 lines.
Domain
(.edu, .com,
.mil, .net, .uk, et al)
Just
as a PC's file extensions (such as .doc for MS Word files) give some indication
of what kind of file it is, the last part of an Internet site's domain name
tells what kind of site it is. The most rapidly expanding of these is ".com," as
in www.designingresults.com, our address. Other common ones include .edu, for educational
institutions, .gov for government, and .mil, for military sites. For sites based
outside the U.S., there are plenty others. You can guess the origin of .uk, for
instance. It gets more confusing once you start dealing with other countries'
sub-domains, such as the UK's ".ac" for academic. Also see
domain name.
Domain Name
Is the last two parts of an Internet address. For instance, if you look
at the URL for this page, you'll see it begins with www.hostingwithservice.com. Our domain
name is hostingwithservice.com. The "www" part tells the server the machine from which we'd
like to retrieve our information. Although "www" is the most common precursor,
you will see others, such as www2.website.com, or sites with no precursor at all,
such as webname.net. Also see domain.
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.
Also see ISDN and/or Leased Lines.
E-mail E-mail is electronic mail. It's the digital, packetized means of
transmitting messages via phone lines to other people's computers using an
online service or ISP.
FTP You've probably put software on your computer by putting diskettes into
a disk drive. Online, you can get software by downloading it. The software sits
on Computer X; you use your browser or an FTP (file-transfer protocol) program
to find and retrieve the software to your computer. If you had software you
wanted to send to another computer, you'd reverse the process; this is known as
"uploading."
HTML(Hyper Text Markup Language)
A system of marking up, or tagging, a document so it can be published on the
World Wide Web. An author incorporates HTML markup in his or her document to
define the function (as distinct from the appearance) of different text
elements. The appearance of these text elements is not defined at the authoring
stage; instead, formatting is applied when a browser decides how it is going to
display the text elements.
Hyperlink
A link that connects you to other documents, other places within the same
document, pictures or HTML pages. Think of a hyperlink as an invitation to visit
another place. A simple click on the link will take you there.
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. Also see internet.
internet (lower case i)
Any time you connect two or more networks together, you have an internet -
as in inter-national or inter-state. Also see Internet.
InterNIC (Internet Network Information Center)
(http://rs.internic.net) for the United States, which is made up of three
separate commercial organizations, and provides government-contracted services.
This agency is the one that assigns and records unique domain names.
IP Address (Static)
Just as postal addresses have been codified so that snail mail can be
delivered correctly -- name on the first line, company name on the second line,
street address third, etc. -- IP addresses have been codified to allow Internet
information (from Web pages to e-mail) to be delivered correctly. To the
Internet, a given server's IP address is all numbers and dots in the format
"000.000.000.0," but since humans aren't as good as computers at remembering
numbers, IP numeric addresses also have a textual representation. The usual
format is [machine name].[sponsoring organization].[type of organization, such
as ".com"].
ISDN (Integrated Services Digital Network)
Special connections that use ordinary phone lines to transmit digital
instead of analog signals. Briefly, ISDN is a telecommunications network that
allows for digital voice, video, and data transmissions. ISDN replaces the slow
and inefficient analog telephone system with a fast and efficient digital
communications network. ISDN lines contain two channels: a B channel, which has
a 64Kbps (kilobits per second) data transmission rate, and a D channel, which
has either a 16Kbps or 64Kbps transmission rate. When the two lines are used
together, transmitted data can travel at 128Kbps. Also see T-1, T-3
lines.
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. Also see co-location.
Modem
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.
Newsgroup
The name for discussion groups on USENET. Also see usenet.
POP
There are two definitions for POP. It's first meaning is "Point Of
Presence," meant to denote whatever place an Internet service provider keeps the
entanglement of computers, routers, modems, leased lines, and other equipment it
needs to serve its subscriber base and maintain its existence as an Internet
site. It's the protocol used by an ISP's mail server to manage e-mail for
subscribers. Another word for an e-mail account is a POP-mail account.
Real Audio
A software application that lets you hear sound (as it occurs) over the
Web. You may obtain this program by downloading it from http://www.realaudio.com.
All of our web hosting services are compatible with this internet application.
Shell Account
For people who were using the Internet before the rest of the world
jumped in and crowded the pool, running a Web browser isn't the only way to view
the online world. An ISP's shell account, intended primarily for die-hards and
tech-heads, offers subscribers one of the many UNIX shells (link) through which
these users enter commands to access services such as Usenet or FTP.
SLIP/PPP
PPP stands for Point-to-Point Protocol, and is one of two common
protocols your Internet Service Provider (ISP) may offer as your way of gaining
access to the Internet. (The other is SLIP, for Serial Line Internet Protocol.)
PPP, the newer protocol, loads on top of other software called a TCP/IP stack
(link) and lets you use your browser instead of the boring ol'
terminal-emulation (link) software Internet users of a few years ago had to put
up with
Spam
The Internet is a wonderful way of communicating, just as postal mail
has been in the past. Unfortunately, the newsgroups and e-mail boxes of the
world have already developed their equivalent to junk mail. It's called "spam,"
and it's not good Internet manners. When you see the same make-money-fast
message in all the newsgroups and in your mailbox, the Net has been spammed.
Since most of these mass-mailing (or mass-posting) messages are irrelevant to
the groups and recipients who get them, spam is considered a serious breach of
Net etiquette.
SQL (Structured Query Language)
A standardized language that is used to define and manipulate data in a
database server. SQL is a standardized query language for requesting information
from a database. The original version called SEQUEL (structured English query
language) was designed by an IBM research center in 1974 and 1975. Oracle
Corporation first introduced SQL as a commercial database system in 1979. SQL is
used to extract specified data from a relational database.
Our web hosting services provide our clients with the program My SQL.
SSL (Secure Socket Layer)
An open protocol for securing data communications across computer networks.
The broad support for this protocol will promote interoperability between
products from many organizations and will speed the growth of electronic
commerce on the Internet and private TCP/IP networks.
Sysadim/Sysop
The sysadmin (system administrator) and the sysop (system operator); the
latter typically does most of the grunt work. In some networks such as online
services, the sysop is instead the referee -- some might say babysitter -- who
steps in when, say, someone has cross-posted a message inappropriately. The
sysop moves the message to its proper place and/or notifies the offender. They
also jump in when flame wars loom, and help out with technical questions or
questions relating to the message board's conventions, written and unwritten.
T-1, T-3
High-speed digital lines that provide data communication speeds of 1.544
megabits (T-1) and 45 megabits (T-3) per second. Also see 56K
and ISDN.
Telnet
A program that lets you log onto a remote computer. Also, the name of
the program implementing the protocol.
Unix
A computer operating system, originally developed at AT&T Bell
Laboratories, that is compatible with a wide range of computer systems. Ultrix,
Solaris, AIX, HP/UX, BSD, Linux, and SystemV are among its numerous descendants.
URL (Universal Resource Locater)
A Web site's address. Examples are: http://www.hostingwithservice.com and http://www.designingresults.com/index.htm
(both are our hompages).
Usenet
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. USENET is completely decentralized, with over 10,000 discussion
areas, called newsgroups. Also see newsgroup.
Virtual Host - Virtual Server
A web server is by definition a computer running web server software.
So "Hosting a Website" would commonly mean providing a computer with web
server software connected to The Internet. "Virtual Hosting" is
where you take a computer and subdivide it into multiple sections.
Each section behaves as though it were independent of the other
sections. So multiple websites can exist using only one computer
and one Internet connection and in some cases even one copy of the web
server software. The advantages are clear, cost savings. The
disadvantage is similar to the disadvantage of living in a bad
neighborhood. If you don't have good neighbors it can affect your
life. Most websites now a days are hosted on virtual hosts.
So long as your hosting provider doesn't "oversell" into one machine and
you don't have one website that is over using the bandwidth, the CPU,
etc.. there is nothing wrong with virtual hosting. A good host
will monitor activity and adjust things to keep it all running smoothly.
Web Browser
A software application (either text-based or graphical) that lets you
browse the world wide web (WWW). Examples are: Spry Mosaic, Netscape Navigator,
and Microsoft Internet Explorer.
Web Server
A program that serves up web pages upon request.
WWW(World Wide Web)
This is the place that people are raving about. It contains colorful
graphics, video, sound bites, real audio, and much, much more. The World Wide
Web (also known as WWW, W3, or the Web) is fast becoming the predominant tool
for accessing and storing information on the Internet. Like gopher, it is a
menu-based system. Unlike gopher, menu items are actually hypertext links which
allow the user to jump among menu pages, directories, files, and documents, and
other Internet (FTP, gopher, and Telnet) sites.
56K Line
A data transmission line with the capacity to move information at
56,000bps. Also see ISDN and T-1, T-3.
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