24-bit See RGB color
256-color See indexed color
8-bit See indexed color
adaptive Adaptive is a emans of creating an 8-bit color palette within Adobe Photoshop
Adobe I
llustrator A vector-based illustration program
Adobe Type Manager (ATM) A program for managing, installing, and deleting Adobe PostScript fonts
Afterburner A filter created by Macromedia that compresses Director files for use on
the Web; its file extension is .DCR
algorithm A method or strategy for solving a task
alignment Refers to the physical location of a paragraph or string of text
alpha channel An extra level of data that stores the amount o
f opaqueness for a particular pixel. Values range from 0 to 255
ambient light The amount of light present without a light source; also known as atmospheric light
analog Data that is based on continually changing frequencies or values
analog-to-digital converter (ADC) A chip that converts analog frequencies to digital bits
animation The perception of movement over time caused by a progression of changing frames
anti-alias To slightly blur the edges of
bitmap objects to produce a more visually pleasing image
applets JAVA-small software aplications writen in JAVA language
AppleTalk A Macintosh network protocol
applets Small applications programmed in Java or JavaScript t
hat are automatically downloaded and played
American Standard Code for Information Interchange (ASCII) A file format in which HTML programs are saved; un unformatted, universal file format
AUAn audio format especially in unix systems
AVIA video format for PC users
bandwith The amount of information that can flow through a specific channel or device over a period of time
bit depth The number of physical bits used to describe a sample
bitmap
A graphic image composed of pixels. Each pixel is defined in bits
BMP Windows Bitmap Format. A graphic file format that can contain up to 24-bit color and can be compressed using run-length encoding (RLE)
bookmark A function in brows
ers that store the name and uniform resource locator (URL) location of http ia a menu list
browser A program designed to interpret World Wide Web page descriptions (HTML code) into a visual representation that can incorporate text and graphics<
BR>
byte A series of 8 bits. Equals a single character
cache Temporary storage space for Web images and pages on the user's hard drive; used by Web browsers such as Netscape to reduce download times
canvas Normally connotes a
blank working area in a bitmap application; analogous to an artist's canvas
cel A single frame in an animation
channel A saved selection or mask in Photoshop; also called an alpha channel
chroma keying A video effect that
allows two separate pieces of video to be overlaid; a special color acts as transparent
Cinepak A common codec used in digital video formats; good at compressing images with solid color information
client pull A Netscape extension th
at causes the browser to jump from one URL location to another without the intervention of the user
clip art Prefabricated graphics that can be bought and used in page designs
clipboard A location in memory that allows you to copy th
e contents of one document and paste them in another
codec (compressor/decompressor) An algorithm that compresses and decompresses a digital file in real time
color depth See depth
Color Look-Up Table (CLUT) A matrix of co
lor values used in palletized images. Each image pixel is referenced to the matrix by numerical values
Common Gateway Interface (CGI) A scripting language that can be used to extend a browser's capabilities
complement The color that
when added in an equal amount to another color will result in gray; the color directly opposite a color on a color wheel
compression The process of substituting for redundant data in a digital file; results in a decrease of file size
com
pression ratio It is the ratio of file size before and after
Cookies Are a general mechanism which server side connections (such as CGI scripts) can use to both store and retrieve information on the client side of the connection
CYMK
(Cyan, Yellow, Mangenta, and Black) The colors used in 4-color process printing. Also a color mode in Photoshop
debug To find and eliminate bugs and errors in prgram code
dial-up access Internet access that uses a modem to conne
ct to a computer that is in turn connected to the Internet
digital Data that is binary in nature, composed of on and off states
direct network connection Internet access that is obtained via a network card to a LAN
director An authoring tool created by Macromedia that allows the cration of sophisticated interactive multimedia products
Domain Name Service (DNS) A naming method used with WWW sites (ex www.somesite.com)
dots per inch (dpi) A measure of t
he visual fineness of an output device
e-mail (electronic mail) Text messages sent and received via electronic networks such as the Internet
Encapsulated PostScript (EPS) An intermediate file format that stores image information by
vectot-based descriptions
encoders Devices that sample video or audio from an analog device
File Tranfer Protocol (FTP) A program that allows a user to log in to another computer for the purpose of uploading or downloading files
<
B>Firewalls Basically is a piece of hardware or softwaere that seats between your Web server and the rest of your corporate network in order to protect the network
filter An algorithm that processes data to create some type of special effec
t or aoutcome
finger An application to see who is in remote machines
Firewall Software application to protect small net organizations
forms Web pages that allow the creator to collect data through the use of enterable fie
lds
frame A single instance in an animation; an HTML tag that allows the user to divide the browser screen into separate windows
Freehand A vector-based illustration program made by Macromedia
FTP Is technology that allows
data to be trasfered across the net.
Gopher A text-menu based tool for accessing data on servers set up under the Gopher protocol
graphic image header The biginning of a graphic image file; tells the application what type of file the im
age is and if it uses compression
helper application Applications that are external to the browser and extend the capability to view various file types
hexadecimal The base 16 mathematil description used in HTML to describe colors
high resolution Generally acceped as images sizes greater than 640x480 pixels with image dephts at 24 bits and higher
home page a WWW ste's main content page
host computer A computer from which one is receiving information o
r gaining access to something
hotlinks Text or graphic based items that allow the user to jump to new places in a document or to a new http site
HTML Is the language used to create WEB pages based on simple text formatting tags
<
B>hotspot An area of a page that is linked to a new place or location
http servers Computers dedicated to providing Hypertext Transfer Protocol access to HTML documents from remote sites
hypertxt Text with associated links to ot
her text, graphics, video, or sound resources
Hypertext Markup Language (HTML) A structural formatting language characterized by embedded tags commonly used to describe Web Pages
icon An abstract graphical representation of an object
or action
image map A map of screen coordinates, regions assigned to functions or links
Indeo A common digital video compression codec that is best used for video
indexed color Color adhering to 8 bits of color data, resu
lting in 256 individual colors; the color depth required of GIF-formatted graphics
interlaced GIF A 256-color raster image that when loaded is displayed in increasing resolution
intranet A network of computers and servers within an o
rganization typically used as an advanced communication device
IP address Internet Protocol address. A series of numbers separated by periods that denotes the location of a computer on the Internet. It allows data to be stored in packets that c
an be sent across multiple networks to an address.
IRC An internet application that allows comunication to other people with internet access by writing to them in real time
ISDN (RDIS in Portuguese) A digital net service that deals
with telephone service and data transmission; is the next stage up from modem connections and is a network connection technology that offers a considerable technology in speed
ISMAP The HTML parameter within IMG SRC structure that alerts the HT
ML parser that an image map is being used
Java Is a programming language that allows tiny programs, or applets to be created and sent over the net
Joint Picture Experts Group (JPEG) A specification for 24-bit color raster files with
lossy LZW compression
Kbps (kilobits per second) A measure of the rate of the transmition of data over networks or phone lines;baud
kilobyte (KB) One thousand bytes; a measure of digital data
MacTCP Macintosh metwork drive
r software
Mosaic A software browser used for accessing information on the Web
Motion Picture Experts Group (MPEG) A specification for the format the format of digital video
multipropose Internet mail extension (MIME) A sc
heme that defines a specific file type and respective application
National Center for Supercomputer Applications (NTSA) Where the first Web browser, Mosaic, was developed
news service A site on the Web providing frequently updated in
formation
Netscape A program that is known as an internet browser. A viewer of the WEB pages
NNTPtransmission protocolfor news in Internet
palette The collection of colors used within a graphics file
PICT Apple'
s graphic picture description format capable of containing 24-bit raster data
Ping Is a network command and application that allows you to probe networked computers to see if they're connected and online
pixel The smallest object tha
t can be manipulated in a raster program
plug-in An addition to an existing program that increases its funcionality
Point-to-Point Protocol (PPP) A dial-up TCP/IP extension program
POP3-post office protocol-e-mail protocol
for non permanent connections to Internet
Portable Document Format (PDF) a description of text and graphics in a highly efficient compressed raster format capable of containing hyperlinks and font outline information
PostScript An i
nterpreted page description lnguage usually resident in an output device
PPP point to point protocol-protocol used to transfer TCP/IP through telephone lines
progressive JPEG A way of saving a JPEG raster file so that it loads sequen
tially in bands
public domain The body of work not under copy protection
QuickTime Apple's digital video standard format
raster A graphic file type containing a matrix of data points
raster dimensions The nunber
of horizontal and vertical data points in a raster graphic
RGB color An additive color model based on red, green and blue light. The absence o color (0,0,0) pruduces black; full color components (255,255,255) produces white
saturation The intensity of color; the amount of pigment in a color
SLIP serial line interface protocol -A dial-up TCP/IP extension program
Shockwave A recent technology from Macromedia that allows to incorporate Director movies and animati
ons into web pages
SMTP simple mail transfer protocol - similar to PPP but older
Telnet Allows you to connect directly to another computer that has a telnet server
TIFF (Tagged Image File Format) A raster fiel format devel
oped by Aldus and Adobe for the efficient transmission and printing of raster graphics on PostScript printers
Transfer Control Protocol/Internet Protocol (TCP/IP) A set of standards that allow for the transmission of data across the Internet
transparent GIF A 256-color raster file where one color has been made transparent, allowing the background color of the Web page to show through
TrueType an outline font technology that creates accurate screen fonts on-the-fly
U
RL The Universal Resouce Locator is the command that points to the Web address so that you don't have to memorize lenghty and unmemorable IP addresses
Unix A popular networking operating system and is responsable for the majority of the WEB
servers.
Usenet Also known as news are discussion forums spraid in several mirrored servers around the world
VRML is a standart that allows Webs sites to replaced with 3D rotational shapes and spaces
Windows Metafile (WMF) A metafile capable of containing raster and object data that is used as
the standars windows image format.
winsock.dll The dynamic link
library driver for Windows-based networking and Internet access
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