Absolute URL: The Internet address
of a page or other World Wide Web resource that includes the
protocol and complete network location of the page or file.
The absolute URL includes a protocol, such as "http,"
network location and optional path and file name. (i.e.: http://www.acme.com/welcome.html)
Active Hyperlink: A hyperlink
that is currently selected in a Web browser. Some Web browsers
indicate the active hyperlink by changing its color.
Active Page: The page currently
being edited in the FrontPage Editor.
ActiveX Control: A component that can be
inserted in a page to provide functionality not directly available
in HTML, such as animation sequences, credit-card transactions,
or spreadsheet calculations. ActiveX controls can be implemented
in a variety of programming languages from Microsoft and third
parties.
Address: A paragraph style usually used
to render addresses on a page or to supply signatures or other
indications of authorship. Address paragraphs are usually
displayed in italics and are sometimes indented.
Algorithm: Complex mathematical formula
that determines how to compress and decompress data by finding
repetitive data and replacing it with a code.
Alias: An alternative name for an object,
such as a variable, file, or device.
Amplifier: Network component that increases
the power of a signal when it is lost due to attenuation to
allow signals to cover greater distances in a LAN environment.
Analog: Data measured in a physical quantity,
such as a waveform, as opposed to a digital format. Examples
include: VHS tapes, vinyl albums, cassette tapes, etc.
Anonymous FTP (UNIX only): Allows for users
to access your web site with standard File Transfer Protocol
(FTP) client software in order to upload/download files without
supplying a unique username and password (anonymous). With
the advent of the current HTTP specifications and browsers,
however, this is fairly moot, since the same can be done through
your browser.
Applet: See Java Applet.
Archiving: The process of storing media
for an extended period of time, without degradation.
Artifacting: Distortion occurring when audio
or video is compressed to a very low bit rate.
ASCII (American Standard Code for Information Interchange):
The predominant method for encoding 7-bit characters on a
personal computer. HTML tags and URLs must be in ASCII. The
FrontPage Editor generates these elements automatically.
.asf: Media file encoded for use on the
Windows Media platform.
Aspect Ratio: Ratio of a picture's width
to its height.
ASX: Metafile that points to a Windows Media
audio/video file.
Audio Sweetening: Process of adjusting audio
controls to produce optimal sounds by improving the signal
to noise ratio.
Audio/Video Synching: Process of synchronizing
the audio data and video images in a combined clip of media.
Authentication Database: A database on a
server that matches user names to passwords.
.avi: An uncompressed audio/video Windows
file format.
Band Pass: Range of wavelengths over which
a component will meet specifications.
Bandwidth: The amount of data able to be
sent through a network connection.
Bandwidth Limited Operation: Condition occurring
when the system bandwidth, rather than the amplitude of the
signal, limits performance.
Base URL: An optional URL that you assign
to a page to convert relative URLs on the page into absolute
URLs. A base URL should end with a document name part, such
as http://sample/sample.htm, or a trailing slash, such as
http://sample/subdir/.
Bit: Short for binary digit, the smallest
unit of information on a machine. A single bit can hold only
one of two values: 0 or 1.
Bit Rate: The speed of data transmission.
Bookmark: A named set of zero or more characters
in a paragraph that can be the target of a hyperlink. In a
URL, a number sign character precedes a bookmark.
Bridge: Network component that connects
two LANs to extend the range of the network.
Broadband: A high-speed, high-capacity transmission
channel able to transmit data at speeds of 144Kbps and above.
Broken Hyperlink: In the FrontPage Explorer,
this is a hyperlink that does not correctly point to a page
or other Internet files. A broken hyperlink either indicates
an incorrect URL or a missing page or file.
Browser: See Web browser.
Buffering: Describes a situation which occurs
when a streaming media player is saving portions of a streaming
media file to local storage for playback. Most streaming media
players buffer a small percentage of a streaming media presentation
before beginning to play it. Buffering also may occur in the
middle of a presentation, when available bandwidth does not
match the presentation's required bandwidth.
Bulleted List: A paragraph style that creates
a single list element, usually indicated by a bullet character.
This is also referred to an unordered list.
Bulletin Board: An Internet service that
makes multiple discussion groups available.
Byte: Eight bits; the fundamental unit of
personal computer data.
Cache: Pronounced cash, a special high-speed
storage mechanism. It can be either a reserved section of
main memory or an independent high-speed storage device.
Capture: Process of digitizing audio and
video content from an analog format.
Cell: The compressed package data is sent
with in over an ATM network.
CGI (Common Gateway Interface): A standard
mechanism for extending Web server functionality by executing
programs or scripts on the Web server in response to Web browser
requests. A common use of CGI is in form processing, where
the browser sends the form data to a CGI script on the server,
and the script integrates the data with a database and sends
back a results page as HTML.
Chroma Control: Process of controlling the
color and saturation information contained in a video signal.
Client: On the Internet, a program that
requests files or services from a server.
Client-Side Program: On the Internet, a
program that is run on the client machine rather than on the
server machine. Client-side programs do not communicate over
the Internet.
Clip Art: A collection of icons, buttons,
and other generally useful graphics files that can be inserted
into pages.
Clip Service: Service that distributes segments
of audio and video content to Web sites for sales and demo
purposes.
Clipboard: A temporary storage area on the
computer for cut or copied items.
Codec: Software-only or hardware assisted
schemes that are used to compress digital video and/ or audio
files by discarding redundant data.
Comb Filter: Circuitry that electronically
separates the color (chrominance) from the picture (luminance)
signal, to enhance fine detail with minimal color spill or
picture "noise" (distortion).
Component Video: A video signal where the
chrominance (color) and luminance (brightness) components
have been recorded separately to produce better picture quality.
Composite Video: Single video signal that
contains luminance, color, and synchronization information.
Compress: Reducing a file to a significantly
smaller size without altering the substantive information
by eliminating the redundant data.
Compression Ratio: Comparison of file sizes
between the uncompressed and compressed files.
Content: Customer owned intellectual property.
Converter: A tool that converts a file,
or a portion of a file, from one format to another. For example,
FrontPage includes a Microsoft Word to HTML converter.
Data Center: VitalStream's Flagship Data
Center in Irvine, CA features redundant DS-3s, 10/ 100 Mbs
switched fast Ethernet, performance-proven Cisco routers and
Catalyst switches.
Data Management: Organizational system for
including descriptive information in a media file, such as
author, copyright, bit rate, etc.
Data Rate: Maximum number of bits of information,
which can be transmitted per second.
Data Transfer: The outward-bound traffic
from a web site, with the exception of e-mail. Any HTML, graphic,
audio or video file that is accessed by someone viewing your
site is included. High rates of data transfer indicated a
heavily trafficked site.
Dedicated Server: A dedicated server is
a single computer in a network reserved for serving the needs
of the network. For example, some networks require that one
computer be set aside to manage communications between all
the other computers. A dedicated server could also be a computer
that manages printer resources. In a web hosting context a
dedicated server is a server allocated to one customer.
Demodulation: Process of retrieving an original
signal from a carrier signal or wave.
Digital Media Infrastructure: Back-end technology
and processes that enable the encoding, management and distribution
of audio and video on the Internet.
Distortion: Corruption of a signal caused
by time delay, harmonics, frequency response noise or other
disturbances.
Distribution: Process of delivering digital
media that includes hosting, web casting and syndication.
DLT (Digital Linear Tape): A type of magnetic
tape storage device. DLTs are half an inch wide and the cartridges
come in several sizes ranging from 20 to over 40 GB. DLT drives
are faster than most other types of tape drives, achieving
transfer rates of 2.5 Mbps.
DNS (Domain Name System or Service): An
Internet service that translates domain names into IP addresses.
Because domain names are alphabetic, they're easier to remember.
The Internet however, is really based on IP addresses. Every
time you use a domain name, therefore, a DNS service must
translate the name into the corresponding IP address. For
example, the domain name www.example.com might translate to
198.105.232.4.
Domain or Domain Name: Website address,
another term commonly used for a URL. This is also referred
to as the Internet address name for a company, organization,
or individual.
Download: Method where the entire file is
transferred to a local machine before playback is allowed.
Downloadable: Media delivery method where
the entire file is transferred to a local machine before playback
is allowed.
DSP (Digital Signal Processor): An integrated
circuit that performs functions such as reverb, filtering
and equalization on a digitized waveform.
Dynamic Web Pages: Web pages more animated
and more responsive to user interaction than previous versions
of HTML. Dynamic web pages are constructed using the DHTML
language (standard HTML, style sheets and programming).
Editor: An interactive program that can
create and modify files of a particular type. Fine programs
such as Hot Dog PRO, Cool Cat and FrontPage are HTML editors.
E-mail (Electronic Mail): A service for
sending messages electronically, over a computer network.
Encoding: A method of compressing audio
and video, converting it from an analog to a digital format.
Ethernet: A local-area network (LAN) protocol
developed by Xerox Corporation in cooperation with DEC and
Intel in 1976. Ethernet uses a bus or star topology and supports
data transfer rates of 10 Mbps. It is one of the most widely
implemented LAN standards. A newer version of Ethernet, called
100Base-T (or Fast Ethernet), supports data transfer rates
of 100 Mbps. And the newest version, Gigabit Ethernet supports
data rates of 1 gigabit (1,000 megabits) per second.
Fileserver: Central computer that controls
network functions and manages shared files.
File Type: The format of a file usually
indicated by its filename extension. Editors usually work
on a limited set of file types. Use the Options command in
the FrontPage Explorer to select the application with which
to edit different file types in FrontPage.
Firewall: A method of protecting one network
from another network. A firewall blocks unwanted access to
the protected network while giving the protected network access
to networks outside of the firewall. A company will typically
install a firewall to give users access to the Internet while
protecting their internal information. FrontPage works with
firewalls.
Fire-Wire: Standard that allows external
devices, like digital video cameras, to transfer data to a
computer at bit rates up to 500 Mbps.
Folder: In a URL, a single part of the path
to a page. A folder is a named storage area on the computer
containing files and other folders. In http://my.web.site/sample/test.htm,
sample/ is a folder.
Formats: File types associated with the
different streaming media platforms.
fps: Frames per second
Frame: A frame appears in a Web browser
as a scrollable window in which pages can be displayed. You
assign a page to a frame when you create a hyperlink to the
page.
Frame Rate: The number of frames of video
displayed in a given measurement of time.
FrontPage Server Extensions: A set of programs
and scripts that support FrontPage and extend the functionality
of the Web server.
FTP (File Transfer Protocol): The Internet
service that transfers files from one computer to another.
You can create ftp hyperlinks (ftp://) in the FrontPage Editor.
Gb (Gigabit): In data communications, a
gigabit is one billion bits (1,073,741,824 bits to be exact).
Bit - the smallest unit of data in a computer. A bit has a
single binary value, either 0 or 1.
GB (Gigabyte): In data communications, a
gigabyte is one billion bytes (1,073,741,824 bytes to be exact).
Byte - a group of eight binary digits processed as a unit
by a computer and used especially to represent an alphanumeric
character.
Generational Loss: Degradation caused by
tape copying.
GIF (Graphics Interchange Format): A commonly
used method of encoding images that contain up to 256 colors.
Home Page: The starting point on a Web server.
It is the page that is retrieved and displayed by default
when a user visits the Web server. The default home-page name
for a server depends on the server's configuration. On most
Web servers, it is index.html or index.htm. Some servers support
multiple home pages.
Hosting: Providing data distribution over
the Internet.
Host: See Server.
Host Name: See Network Location.
HTML (Hyper Text Markup Language): The coding
scheme used to format text for use on the World Wide Web.
HTML Tag: A symbol used in HTML to identify
a page element's type, format, and structure. The NetObjects
Fusion Editor automatically creates HTML tags to represent
each element on the page.
HTTP (Hyper Text Transport Protocol): The
transmission standard used to send HTML documents across the
World Wide Web.
Hyperlink: A jump from text or from an image
map to a page or other type of file on the World Wide Web.
In World Wide Web pages, hyperlinks are the primary way to
navigate between pages and among Web sites.
IIS (Internet Information Server): Microsoft's
high-performance, secure, and extensible Internet server based
on Windows NT Server. IIS supports the World Wide Web, FTP,
and gopher.
Image: A graphic in GIF or JPEG file format
that can be inserted in a World Wide Web page. FrontPage lets
you import images in the following formats and insert them
as GIF or JPEG: GIF, JPEG, BMP (Windows and OS/2), TIFF, TAG,
PCD, RAS, EPS, PCX, and WMF.
Indexing: A process which logs reference
points within an audio or video file, for the purpose of searching
within the media.
Interframe method: Interframe method is
a type of video compression used by MPEG, which compresses
three types of frames: I-Frames, P-Frames and B-Frames. In
I-Frames, the entire scene is compressed. P-Frames are compressed
with reference to a Past-I or P-Frame. B-Frames provide the
highest amount of compression but require both a past and
a future frame as a reference. The image sequence in MPEG
is flexible, depending on application specific parameters.
Interlaced: The combination of two separate
fields joined together to form a single video frame.
Interstitial: Web-based advertisement occurring
before, after, or during content clips.
Internet: The global computer network composed
of thousands of Wide Area Networks (WAN’s) and Local
Area Networks (LANs), that use TCP\IP to provide worldwide
communications to homes, schools, businesses, and governments.
The World Wide Web runs on the Internet.
Internet Address: See Network Location.
Internet Database Connector: A Microsoft
IIS feature that allows your World Wide Web site to access
databases.
IP (Internet Protocol): Internet software
that divides data into packets for transmission over the Internet.
Computers must run IP to communicate across the Internet.
See also TCP.
IP Address (Internet Protocol Address):
The standard way of identifying a computer that is connected
to the Internet, much the way a telephone number identifies
a telephone on a telephone network. The IP address is four
numbers separated by periods, and each number is less than
256, for example, 192.200.44.69. Your system administrator
or Internet service provider will assign your machine an IP
address.
IP Address sub mask/mask (Internet Protocol address
mask): A range of IP addresses defined so that only
machines with IP addresses within the range are allowed access
to an Internet service. To mask a portion of the IP address:
replace it with the asterisk wild card character (*). For
example, 192.44.*.* represents every computer on the Internet
with an IP address beginning with 192.44.
Java: A general-purpose programming language
created by Sun Microsystems. Java can be used to create Java
applets. A Java program is downloaded from the Web server
and interpreted by a program running on the machine containing
the Web browser.
Java applet: A short program written in
Java that is attached to a World Wide Web page and executed
by the browser machine.
JavaScript: A cross-platform, World Wide
Web scripting language developed by Netscape Communications.
JavaScript code is inserted directly into the HTML page.
JPEG (Joint Photographic Expert Group):
A color image format with excellent compression for most kinds
of images. JPEG is commonly used on the World Wide Web for
24-bit color images.
LAN (Local Area Network): A computer network
technology that is designed to connect computers that are
separated by a short distance. A LAN can be connected to the
Internet and can also be configured as an intranet. Letterbox:
Projected aspect ratio of feature films is often wider than
our 525 or 625 line video formats.
Link: See Hyperlink.
List: A group of paragraphs formatted to
indicate membership in a set or in a sequence of steps. In
the FrontPage Editor you can create numbered lists or bulleted
lists, menus, directories, or definitions.
Log File: A file that lists any actions
that have occurred. For example, web servers maintain log
files listing every request made to the server. With log file
analysis tools like WebTrends, it's possible to get a good
idea of where visitors are coming from, how often they return,
and how they navigate through a site. Using cookies enables
Webmasters to gather even more detailed information about
how individual users are navigating through a site.
Lossy Compression: The technique of shrinking
a media file by losing some precision of detail.
Management: The process of organizing digital
media such as indexing, data entry, watermarking and rights
management for effective distribution of that property.
Mb (Megabit): In data communications, a
megabit is one million bits (1,048,576 bits to be exact).
Bit - the smallest unit of data in a computer. A bit has a
single binary value, either 0 or 1.
MB (Megabyte): In data communications, a
megabyte is one million bytes (1,048,576 bytes to be exact).
Byte - a group of eight binary digits processed as a unit
by a computer and used especially to represent an alphanumeric
character.
Metafile Redirector: Static or dynamically
generated file that points a media player toward a streaming
media source.
Meta Data: Descriptive information surrounding
a media file, such as copyright, author, etc.
Meta Tag: An HTML tag that must appear in
the portion of the page. Meta tags supply information about
the page but do not affect its display. A standard Meta tag,
"generator," is used to supply the type of editor
that created the HTML page.
MIME Type (Multipurpose Internet Mail Extensions
type): A method used by Web browsers to associate
files of a certain type with helper applications that display
files of that type.
MP3 (MPEG Audio Layer 3): Standard for audio
compression capable of 10:1 compression with no noticeable
loss in quality.
Multicast: Process where a single stream
is severed from one server to multiple clients.
Multi-hosting: The ability of a Web server
to support more than one Internet address and more than one
home page on a single server. Also referred to as ‘virtual’
or ‘shared’ hosting.
Narrowband: A connection over a computer
network, which supports a relatively low bit rate.
Net Congestion: Situation that occurs when
there are significant and unexpected delays between transmission
of bits by the server and reception by the client.
Network Location: In a URL, the unique name
that identifies an Internet server. A network location has
two or more parts, separated by periods, as in “My.Network.Location”.
Also called host name and Internet address. NIC's/Dual NIC's:
A computer circuit board or card that is installed in a computer
to allow a connection to a network.
NOC (Network Operations Center): The VitalStream
NOC provides 24x7 monitoring of our Network including: real-time
network status, performance reporting, real-time alarming,
event correlation and forecasting.
Node: In a network, it is a processing location.
A node can be a computer or some other device, such as a printer.
Every node has a unique network address, sometimes called
a Data Link Control (DLC) address or Media Access Control
(MAC) address.
Noise Reduction: Post production process
that eliminates the bursts of interference that are not part
of the audio and video signals.
Nonlinear editing: Process of editing audio
or video where the entire video is available at any given
moment.
NTSC (National Television Systems Committee):
Body that determines standards for broadcast signal delivery.
PAL (Phase Alternation Line): Protocol for
television broadcast/reception used in Europe.
Packet: A piece of a message transmitted
over a packet-switching network. One of the key features of
a packet is that it contains the destination address in addition
to the data. In IP networks, packets are often called datagrams.
Page: A single document in a World Wide
Web site written using the HTML language.
Parked Domains: A parked domain is a reserved
domain name that does not load any web site. It sits in wait
on a name server to be used by its owner at a later date.
Password: A text string that allows a user
access to an Internet service, if the service requires it.
Path: The portion of a URL that identifies
the folders containing a file. For example, in the URL http://my.web.site/hello/world/greetings.htm,
the path is /hello/world/.
Payment Gateway: As it applies to e-commerce,
a payment gateway is software that is hosted on a server that
links an online store to a process that verifies that a customer,
who is placing a credit card order, has the credit available
and that the order should be accepted. Later, when the merchant
is ready to submit the charges for processing, the payment
gateway accepts them and submits the charges to a payment
processor who facilitates the transfer of funds to the merchant.
PCT (Personal Communications Technology):
An enhanced version of Secure Socket Layer. See also SSL.
PERL: Popular Extraction and Report Language,
the most widely used language for programming CGI applications.
Plug-In: One of a set of software modules
that integrate into Web browsers to offer a range of interactive
and multimedia capabilities.
POP3 Account: Storage space for e-mails
delivered via the most recent version of the Post Office Protocol
(POP). Your POP3 Accounts with VitalStream will end in @yourdomainname.com.
You can use a standard e-mail client, such as Eudora, Netscape
Mail or Internet Explorer Mail to download the e-mail to your
computer.
Port: One of the network input/output channels
of a computer running TCP/IP. In the World Wide Web, port
usually refers to the port number a server is running on.
A single computer can have many Web servers running on it,
but only one server can be running on each port. The default
port for World Wide Web servers is 80.
Protocol: A method of accessing a document
or service over the Internet, such as File Transfer Protocol
(FTP) or Hyper Text Transfer Protocol (HTTP). Also called
“type”.
Proxy Server: An Internet server that acts
as a firewall, mediating traffic between a protected network
and the Internet.
Rack Space: Physical storage unit for computers
or network devices.
ram: Metafile that points to a Real Media
file.
RAM: An acronym for Random Access Memory,
a type of computer memory that can be accessed randomly; that
is, any byte of memory can be accessed without touching the
preceding bytes. RAM is the most common type of memory found
in computers and other devices, such as printers.
Rights Management: The process of monitoring
the ownership, distribution, and usage of media.
Rip: Term used to describe the capture of
an audio track from a CD.
Root Directory: The top directory in a file
system. The root directory is provided by the operating system
and has a special name; for example, in DOS systems the root
directory is called \. The root directory is sometimes referred
to simply as the root.
RTSP (Real-Time Streaming Protocol): Standard
method of transferring audio and video and other time-based
media over Internet-technology based networks.
Scanning: The process of capturing digital
images.
Script: A type of computer code than can
be directly executed by a program that understands the language
in which the script is written. Scripts do not need to be
compiled into object code to be executed.
SCSI: The Small Computer System Interface
is a set of evolving standard electronic interfaces that allow
personal computers to communicate with peripheral hardware
such as disk drives, tape drives, CD-ROM drives, printers,
and scanners. SCSI (pronounced "scuzzy") is faster
and more flexible than previous interfaces.
Secure Cabinet: A locked cabinet located
in a monitored data center where customers can connect their
servers to the Internet.
Secure Socket Layer (SSL): A low-level protocol
that enables secure communications between a server and a
browser.
Server: A computer that offers services
on a network. On the World Wide Web, the server is the computer
that runs the Web server program that responds to HTTP protocol
requests by providing Web pages. This can also be referred
to as ‘host’.
Server-Side Scripting and Programming Languages:
A variety of scripting and programming languages is available
to you in order to give greater function to your web site.
Some of the primary examples are: UNIX, Perl, shell script,
Server-Side Includes (SSI), PHP, Miva (formerly HTMLScript),
NT, ColdFusion, and Active Server Pages (ASP).
Shared Server: Shared web servers are a
very popular way of providing low-cost web hosting services.
Instead of requiring a separate computer for each site, dozens
of sites can co-reside on the same computer. In most cases,
performance is not affected and each web site behaves as if
a dedicated server is serving it.
Signal-to-Noise Ratio: Proportion of true
signal information to extraneous noise or interference that
an audio or video unit delivers.
Simulated Live: A completed audio/video
event, which is presented as though it were live.
SMIL (Synchronized Multimedia Integration Language):
XML-compliant mark-up language used to synchronize disparate
media elements (such as text, animations, audio and video)
within one streaming media presentation.
SMTP: Short for Simple Mail Transfer Protocol,
a protocol for sending e-mail messages between servers. Most
e-mail systems that send mail over the Internet use SMTP to
send messages from one server to another; the messages can
then be retrieved with an e-mail client using either POP or
IMAP.
Sockets: In UNIX and various other operating
systems; this is a software object that connects an application
to a network protocol. In UNIX for example, a program can
send and receive TCP/IP messages by opening a socket and reading
and writing data to and from the socket. This simplifies program
development because the programmer need only worry about manipulating
the socket and can rely on the operating system to actually
transport messages across the network correctly.
Spam: The common term for junk or unwanted
e-mail, usually advertising, that is sent to people who did
not give permission to be on such a mailing list.
Spatial Compression: Compression technique
that reduces the information needed to display video frames.
Streaming: A technique for transferring
digital media on the Internet which can process data as it
is received, in a steady continuous stream.
Syndication: A business process whereby
a content creator (for example, an independent film producer)
licenses media to a content user (for example, an online film
portal) for limited use.
Table: One or more rows of cells on a page
used to organize the layout of a page or arrange data systematically,
most often used in databases.
TCP (Transmission Control Protocol): Internet
networking software that controls the transmission of packets
of data over the Internet. Among its tasks, TCP checks for
lost packets, puts the data from multiple packets into the
correct order, and requests that missing or damaged packets
be resent. Computers must run TCP to communicate with World
Wide Web servers.
TCP/IP (Transmission Control Protocol/Internet Protocol):
The suite of communications protocols used to connect hosts
on the Internet. TCP/IP uses several protocols, the two main
ones being TCP and IP. TCP/IP is built into the UNIX operating
system and is used by the Internet, making it the de facto
standard for transmitting data over networks. Even network
operating systems that have their own protocols, such as Netware,
also support TCP/IP.
Telecine: Technique designed to transfer
a film image to a video image in real time.
Temporal Compression: Compression technique
that operates across time by eliminating the similar data
from frame to frame.
Thumbnail: A small version of an image on
a World Wide Web page, often containing a hyperlink to a full-size
version of the image.
Time-Based Correction: Process of correcting
picture jitter, 'skewing' (shifting of the video image), or
color breakup caused by reproducing the video signal from
tape.
Track Sampling: Process of selecting segments
of audio piece for demo purposes.
Transcoding: The process of converting media
from one compressed digital format to another.
UDP (User Datagram Protocol): The method
of communicating between computers, which does not guarantee
that ever bit arrives at its end destination.
Unicast: Distribution of media where each
user must access an individual stream to view media.
UNIX: An operating system typically used
on proprietary workstations and computers. Some World Wide
Web servers run on UNIX systems.
URL (Uniform Resource Locator): A path to
a location on the Internet. For instance, http://www.vitalstream.com
will take you to VitalStream's Web Hosting information.
VBScript: A subset of the Microsoft Visual
Basic programming system. VBScript programs can be executed
either on the browser machine or the World Wide Web server.
Video clip: A short video sequence that
can be embedded into a World Wide Web page. Video clips can
be inserted into FrontPage using ActiveX Controls, VBScripts,
Java applets, or plug-ins.
VOD: Video on demand, video content that
may be viewed by the end-user from beginning to end at any
time.
Watermarking: A system of 'invisibly' inserting
information into a digital image, audio or video file that
identifies the file's copyright information (author, rights,
etc.).
.wav: An uncompressed sound file.
Webcasters: Term used to describe individuals
and organizations who deliver media in a live broadcast format
over the World Wide Web (WWW).
WAIS (Wide Area Information Service): Supports
searching over the Internet.
Web browser: A client program that retrieves
World Wide Web pages and displays them to the user.
WYSIWYG "What You See Is What You Get.":
An editing interface in which the file being created is displayed
as it will appear to the end-user. The FrontPage Editor is
a WYSIWYG editor.
WAN (Wide Area Network): A computer network
that spans a relatively large geographical area. Typically,
a WAN consists of two or more local-area networks (LANs).
Computers connected to a wide-area network are often connected
through public networks, such as the telephone system. They
can also be connected through leased lines or satellites.
The largest WAN in existence is the Internet.
Web Server: A computer that delivers (serves
up) web pages. Every web server has an IP address and possibly
a domain name. For example, if you enter the URL http://www.vitalstream.com
in your browser, this sends a request to the server whose
domain name is www.vitalstream.com. The server then fetches
the page named home.asp and sends it to your browser.
Whois: An Internet utility that returns
information about a domain name or IP address. For example,
if you enter a domain name such as VitalStream.com, whois
will return the name and address of the domain's owner.
Wildcard: A special symbol that stands for
one or more characters. Many operating systems and applications
support wildcards for identifying files and directories. This
enables you to select multiple files with a single specification.
For example, in DOS and Windows, the asterisk (*) is a wild
card that stands for any combination of letters.
WWW: The World Wide Web in simplest terms
is an internationally networked organized collection of information.
What does this mean? Basically this means using the right
software, you can read, see and even hear specific information
that someone else has made public via your computer. This
is the graphical Internet hypertext service that uses the
HTTP protocol to retrieve World Wide Web pages and other data
from World Wide Web servers. Pages on the World Wide Web usually
contain hyperlinks to other pages or to multimedia files.
