@ : In the e-mail, is the symbol that separates the user name the name
of your email provider.
Acrobat Reader: Adobe program to capture and
view documents in their original appearance. Works
with Acrobat PDF files.
ActiveX: Technology created by Microsoft that provides a
programming environment to allow interaction and customization of
ADSL: Asymmetric Digital Subscriber Line. Technology for transmitting
of digital information at high bandwidths .Unlike the dial up service,
ADSL provides a permanent connection and high speed. This
technology uses most of the channel to send information to the user,
and only a small part to receive information from the user.
Agent: Short program "smart" created to perform certain tasks,
providing the user operative. Well known examples of agent are
Assistants (wizards) that exist in most modern software.
AGP: graphics accelerator port. Lets run fast three-dimensional
Algorithm: A set of well-defined rules for solving a problem. A software
program is the transcript programming language, an algorithm.
Antivirus: programs that searches for and virus and
eliminate computer viruses that may have infected a
hard disk or floppy disk.
Application A software program that lets you complete a task, such
as writing a paper, creating a poster, designing an image, or viewing
a Web page.
Archie: A tool that lets you locate files on internet, it was created in
Montreal. An Archie server (there are several scattered throughout the
Internet) maintains a database that records the location of several
ASCII : American Standard Code for Information Interchange. This
international standard contains 128 codes that correspond to all
upper and lower-case Latin characters, numbers, and punctuation
marks. Each code is represented by a seven-digit binary number:
0000000 through 111111.
ATM: (Asynchronous Transfer Mode): is a switching technology and
high-speed multiplexing, used to transmit different types of traffic
simultaneously, including voice, video and data.
Attachment: This name is given to a data file (for
example a spreadsheet or a letter word
processor) sent with an email.
Authoring (author): Activity to create content for Web Pages in HTML
format. The Web site administrator or Webmaster is generally
responsible for content authoring.
Avatar: fictitious identity, a physical
representation (face and body) of a person
connected in the virtual world of the
Internet. Many people build their digital personality
then used in certain servers (for example chat rooms)
to play or chat.
AVI: Microsoft format for audio and video files.
Backdoor: (or trapdoor, hatch or trap door) Section hidden a
computer program that is operated only if there are particular
conditions or circumstances in the program.
Back-end processor: the processor that is used for certain highly
specialized function, such as managing a database.
Backup: is a security copy .Used to prevent possible loss of
Bandwidth: The amount of information that one can send
through a connection, measures in bits-per-second (Bps). A standard
page of English text contains about 16,000 bits.
Banner: ads that occupies part of a Web page, usually located at the
top center. By clicking on it, the navigator can reach the advertiser's
BCC: Blind Courtesy Copy or Blind Carbon Copy. A way to send an e-
mail message to more than one recipient, without the parties knowing
that an identical message was sent to others .Using the BCC is a good
way to avoid the long list of recipients that your correspondents usually
have to wade through in the header of a mass-mailing. See CC.
BIOS: Basic Input / Output System: Basic system input / output
data. Set of procedures to control the flow of data between
operational the system and devices such as hard disk, video card,
keyboard, mouse and printer.
Bit: Binary DigIT .A single digit number in base-2 (either a one or a zero).
This is the smallest unit of computerized data.
Browser: The software application that allows
you to view Internet pages.
Browser-safe colors: Although there are millions of colors, in the
computer world, there are only 216 colors that are browser-safe, or are
able to be read by any Web browser. These colors will remain true no
matter what platform or browser you use, and their hexadecimal
codes (numerical names for colors) are made up by using any
combination of 00 33 66 99 CC or FF.
Buffer: Buffer memory area used to store data temporarily during a
Bug: Bug insect .Programming error that causes problems in the
operations of a computer.
Bus: common bond, common conductor,
via interconnection .Method of
interconnection of devices using a single
shared line. In Bus topology each node is
connected to a common wire Does not
require a hub in a network with bus topology.
Byte: A set of 8 bits that means something to the computer, like a
letter, number, or punctuation mark. For example, the byte 01001000
signifies the character H .The three-letter word that requires 3 bytes.
Cable: Conduit connecting network devices
together. The cable type used depends on
the network size and topology of it.
Cache memory: small amount of fast memory
that increases performance computer store data
CAD: Computer Aided Design Software for creating precision
drawings, two and three dimensional .It is used primarily by architects
Character: Number, letter or symbol on the computer, consisting of a
CD-ROM: Compact Disc read-only. It has a storage capacity of up to
650 megabytes, much greater than the diskette.
Celeron: Intel's microprocessor family, economy version of the Pentium
with little internal cache.
Chat: chat .Internet service that allows two or more users to chat
online using the keyboard.
Chip: Circuit very small, consisting of
thousands to millions of transistors printed on
a silicon wafer.
Cluster: group, cluster, and clustering. In computer technology, a
cluster is the unit of storage on the hard disk. A file is composed of
several clusters, which can be stored in various places on disk.
Command: a user instruction given to the computer operating system
to perform a certain task.
Cookie: small text file that a website places on the hard drive of a
computer visits. At the same time, collects information about the
user .It Accelerates site of navigation. Their use is controversial
because it threatens the privacy of users.
CC: Courtesy Copy, derived from the non-digital Carbon Copy .A way
to send an e-mail message to a person other than the main recipient
or recipients. The CC'ed party can see that they are not the main
recipient of the letter.
client /server: A term denoting the technology relationship between
two types of computers, the client (normally your Mac or PC) and the
server (a computer that stores and delivers information or files to you).
When surfing the Internet, you are the client, and the pages you are
reading come from the server.
Control key (CTRL): A key used to access commands through the
keyboard rather than the menus. CTRL commands are
Control panel: A window you can open to adjust various aspects of
your computer, such as the volume, fonts, desktop background,
mouse speed, and clock.
CPU : Central Processing Unit. The CPU is the hardware that most
people consider the "brain" of the computer. It takes instructions from
software, makes calculations, and helps run the show!
Database: A collection of data organized in a manner that is easy to
access, manage and update.
Desktop: Is the background behind all your windows, menus, and
dialog boxes: your virtual desk. You can change the look of your
desktop by applying different properties to it through your control
Domain name: The unique address name for an Internet site. The part
on the left is the most specific, and the part on the right is the most
general. Each domain name is associated with one and only
one Internet Protocol Number, which is translated by a Domain Name
Download: To save a file onto your computer from another source,
like the Internet. People often download files, such as free-ware, share-
ware, for installations, and sounds, movie clips, text files, or news
streams onto their computer for viewing or listening.
DNS: (Domain Name System). This is a service that stores, translates,
and retrieves the numerical address equivalents of familiar host names
that you use everyday (such as the "www.4teachers.org" in
http://www.4teachers.org). Each host name corresponds to a
numerical address required by standard Internet protocol that the DNS
retrieves in order to allow you to remember addresses with names, not
numbers. DNS entries are housed on numerous servers worldwide.
Debugging: error correction or bugs.
Diode: Electronic component that allows
the passage of electric current in one
DSL (Digital Subscriber Line): Technology
that lets you send a lot of information at
high speed telephone lines.
DVD (Digital Versatile Disc): A disc that has large storage capacity
and also serves to store movies.
Dynamic HTML: variant of HTML (Hyper TextMark-up Language) to
create web pages more animated.
Ethernet: A common method of networking computers in a Local
Area Network (LAN). Ethernet can handle from 10,000,000-
100,000,000 bits-per-second (or 10-100 megabits-per-second) and can
be used with almost any kind of computer.
E-mail: is a method of digital Exchanging messages across the Internet
or Other computer networks. Originally, Directly Transmitted WAS email
from one user to another computer.
This required to Be Both computers online at the Same time, the instant
messenger. Are Today's email systems based on a
store-and-forward model. Email servers accept,
forward, deliver and store messages. Users No
Longer Need to Be Online Simultaneously
connect and Need only Briefly, Typically to an
email server, for as long as it Takes to send or
Emulation: The process of reconciliation between computers using
Encrypt: protect file content expressing a coded language. Simple
coded languages consist, for example, in replacing letters with
Extranet: part of an intranet access available to customers and other
users outside the company.
Fast Ethernet: A new Ethernet standard that provides speeds of 100
Megabits per second (as opposed to 10 megabits per second
FDDI (Fiber Distributed Data Interface): This is a network of 100
Megabits per second in star or ring topology is widely used in
backbones, now displaced by new technologies such as ATM.
Firewall: Special software used to prevent unauthorized user access to
the network. All network traffic must first pass through the firewall
FAQ: Frequently-asked questions (and answers) on the theme of a website.
Finder: The Finder is the default open application on a Macintosh, and it's
represented by a little, purple, happy face icon in the top right-hand
corner of the screen. Most people think of it as the desktop, however, or
as the utility that lets you navigate quickly among open programs. When
you click on the Finder, you can designate which of your open
applications will be the active one.
Flash Memory: A type of memory that can be erased and reprogrammed
in units of memory called
"Blocks". Its name comes from the microchip to erase portions of memory
in a single action,
or "flash." It is used in cell phones, digital cameras and other devices.
Floppy disk: is a data storage medium that is
composed of a disk of thin, flexible ("floppy") magnetic
storage medium encased in
a square or rectangular plastic shell.
FTP: File Transfer Protocol. A set of rules that allows two computers to "talk"
to one another while transferring files from one to another. This is the
protocol used when you transfer a file from one computer to another
across the Internet. Many Internet sites have publicly accessible
repositories of information that can be obtained using FTP, by logging in
using the account name "anonymous." These sites are called "anonymous
Gateway: A device used to connect different types of operating
environments .Typically used to connect LANs to minicomputers or
Giga: prefix indicating a multiple of 1,000 million, or 109. When using
the binary system, as in computing, means a multiple of 230, or
Gigabit: Approximately 1,000 million bits (exactly 1,073,741,824 bits)
Gigabyte (GB): a unit of memory. 1 gigabyte = 1024 megabytes =
GIF: Graphics Interchange Format. An efficient method of storing
graphics developed for CompuServe in the
early 1980s. GIF files take up a small amount of
disk space and can be transmitted quickly over
phone lines. GIFs can be viewed on any
computer platform and are best for illustrations,
cartoons, logos, or similar non-photographic
Handheld: PC small enough to be held in the hand or
placed in a pocket. In some you can enter
handwritten data. Bring other small keyboards built.
Hardware: all the physical components of the computer and its
Hard disk: It is a non-volatile storage device
for digital data. It features one or more
rotating rigid platters on a motor-
driven spindle within a metal case. Data is
encoded magnetically by read/write
heads that float on a cushion of air above
Hard drive: A device for storing information in a fixed location within
your computer. The equivalent of a filing cabinet in an office, the hard
drive is used for storing programs and documents that are not being
Hexadecimal code: Also called Hex codes. In HTML, colors are
identified by a six-character string of numbers and letters
(0,1,2,3,4,5,6,A,B,C,D,E,F) derived from base-16 mathematics. The
codes are used to convert RGB (red, red, and red) values into
something HTML can understand. Pure red would be #FF0000.
Homepage: The page on the Internet which most often gives users
access to the rest of the Web site. A site is a collection of pages.
Host: The name given to any computer directly connected to the
Internet. Host computers are usually associated with running computer
networks, online services, or bulletin board systems. A host computer
on the Internet could be anything from a mainframe to a personal
computer. See also DNS.
Hosting: Service offered by some providers that offer their clients
(individuals or companies) on your server space to host a website.
HTML: Hypertext Markup Language. This is the coding language used
to create sites on the World Wide Web.
HTTP: Hypertext Transfer Protocol. Is a protocol that allows transfer of
information in text files, graphics, video, audio and other multimedia
Hub: Concentrator. Device is typically used in star
topology as the focal point of a network where
hence where all the links of various network devices.
Hypertext: Generally any text in a file that contains words, phrases, or
graphics that, when clicked, cause another document to be retrieved
and displayed. Hypertext most often appears blue and underlined in
Hyperlink: or link, is a reference to a document that the reader can
directly follow, or that is followed automatically
Icon: Symbols or illustrations on the desktop or computer screen that
indicate program files, documents, or other functions.
IP Number: Internet Protocol number .A unique number consisting of
four parts separated by dots, for example 22.214.171.124. This is the
number assigned to a host machine which is retrieved by a DNS when
a request for an Internet site is made. These numbers usually
correspond to unique domain names, which are easier for people to
Inbox: Inbox for email.
Intranet: Intranets are corporate networks that use Internet protocols
and tools. Its appearance is similar to Internet pages. If this network is
in turn connected to the Internet, it is usually protected by firewalls.
Inkjet printer: printer works by spraying ink on paper.
Interface: transition element or connection that facilitates the
exchange of data. The keyboard, for example, is an interface
between the user and the computer.
IP: Internet Protocol.
IRDA (Infrared Data Association): Organization founded to create
international standards for hardware and software used in
communication links, infrared. The infrared technology plays an
important role in wireless communications.
ISDN: Integrated Services Digital Network: Integrated Services Digital
Network: telephone transmission system to digital. With an ISDN line
and ISDN unadaptador can surf the Web at speeds of 128 kbps,
provided that the ISP also has ISDN.
ISO: International Organization for Standardization. Founded in 1946, is
an international federation to unify standards in a hundred
countries. One is the standard OSI reference model universal
ISP: Internet Service Provider.
JPG or JPEG An efficient method for storing graphic files for
transmission across phone lines. UnlikeGIF files, JPG files lose a little
data when the image is converted, and their files are often much
larger than GIFs. However, JPGs are your best choice for photographic
Kernel: the core or essential part of an operating system. It provides
the basic services of the rest system.
Keyword: keyword for any search.
Kilobit: 1,024 bits.
Keyboard shortcuts, a combination of keystrokes that provides easier
access to a command or operation file.
Keyboard: is typewriter keyboard, which uses an arrangement of
buttons or keys, to act as mechanical levers or electronic switches.
After punch cards and paper tape, interaction via teletype-style
keyboards became the main input device for computers.
Kilobyte (KB): A thousand bytes. Due to the binary nature of
computers, it's 210 bytes, technically 1024 bytes.
LAN: Local Area Network. A computer network limited to the
immediate area, usually the same building.
LAN Manager: Network Operating System.
Laser printer: fast printer, high resolution using laser
technology. When the beam touches the paper, forms a
electrostatic image that attracts the ink dry.
Latency: time it takes for a packet of information to travel from source
latency and bandwidth, together, define the capacity and speed of
LCD: Liquid Crystal Display. LCD screen, usually
used in notebooks and other small computers.
Linux: free operating system for personal computers derived from
UNIX. It was created by programmer Linus
Torvalds, who gave Linux its name. Linux is
under special copyright that allows anyone
to improve it, but no one to profit from it.
Listserv: A very common program used to run a mailing list. Because it
is so common, mailing lists are often called listservs, even if they are run
with different software.
LPT: Line Printer Terminal .Connection between a PC and a printer or
other device. Is a
parallel port is faster than a serial port.
Macro viruses: is a widespread virus that mainly affects Word
documents. It's more annoying
than destructive. Yesterday, for example, that the program
commands or enters unfamiliar words or
phrases that the user has not written.
Mainframe: main structure .Computer type large multiuser, used in
Majordomo: small program that automatically distributes e-mail
messages to users subscribed to a
Megabit: Approximately 1 million bits. (1,048,576 bits).
Megabyte (MB): a unit of memory. 1 megabyte = 1024 kilobytes =
Megahertz (MHz): One million hertz or Hz.
Microprocessor: is the most important chip in a computer. Its speed is
measured in MHz.
Millisecond: One thousandth of a second.
Mirror site: Website copied to another server in order to facilitate
access to its contents
from the nearest or most convenient for the user.
MIT: Massachusetts Institute of Technology. Prestigious American
institution based in Boston.
Many consider it the best universidadtécnica the world.
MMX: Pentium microprocessor designed to
provide multimedia applications faster.
Modem: modulator / demodulator. Peripheral
device that connects your computer to the
Mailing list: A system that allows people to send
e-mail to one address, which is then copied and sent to all of the other
subscribers to the mail list. In this way, people who may be using
different kinds of e-mail access can participate in discussions
Menu bar: A horizontal strip at the top of a window that shows the
menus available in a program.
Motherboard: A computer's main circuit board, containing the CPU,
microprocessor support chips, RAM, and expansion (bus) slots. Also it is
known as the logic board.
MPEG: The Moving Pictures Expert Group develops standards for digital
video and audio compression.
It is sponsored by the ISO.
Nanosecond: a billionth of a second. It is a common measure of
access time to RAM.
Network: A group of connected computers that allows people to
share information and equipment. Many schools have a Local Area
Network and are also connected to a Wide Area Network, such as the
World Wide Web. Computer network is a data communications
system that interconnects computer systems situated in different
places. It can be composed of different combinations of different
types of networks.
Network Interface Card: Adapter Cards computers located within that
specify the type of network to use (Ethernet, FDDI, ATM) and through
them are the connecting link between the computer and the
network. That is, network cables are connected to the computer.
Network Operating System: An operating system that includes
programs to communicate with other computers over a network and
Newsgroup: Usenet newsgroups are Internet discussion groups whose
topics are about as diverse as you can imagine. If you have an
original idea for a newsgroup, and gather some people who want to
subscribe, you can probably begin a newsgroup.
Node: A network device, usually a computer or printer.
Online: State in which a computer is when connected directly to the
network through a device such as a modem.
Operating system (OS): This is the programming that makes your
computer run its most basic functions. Some examples are UNIX, Linux,
Windows 95, 98, or NT, and Mac
OS 7 and 8.5.
Optical Fiber: technology to
transmit information as pulses of
light through a glass fiber
duct. Optical fiber carries much
more information than
conventional copper wire. Most
long-haul telephone companies
use optical fiber.
OSI: (Open Systems
Interconnect) universal standard
for communication protocols.
Package (packet): Part of a message being transmitted over a
network. Before being sent over the Internet, information is divided into
Parallel Port : connection through which data is sent through various
channels. A computer usually has a parallel port called LPT1.
PCMCIA: Personal Computer Memory Card International
Association. Memory expansion cards that increase storage capacity.
Peripheral: any device that connects to the computer. For example:
monitor, mouse, printer,
computer (PC): A
microcomputer with its own processor and hard drive. Although
technically this refers to all such computers, including Macs, the term
PC is nearly synonymous with only the IBM-compatible
PING Packet Internet Gopher. A TCP/IP application that sends a
message to another computer, waits for a reply, and displays the time
the transmission took. This serves to identify what computers are
available on the Internet and how long wait-times are.
Pixel: A combination of "picture" and "element” .Minimum graphic
element with which images are composed on a computer screen.
Plain text: This is text without extraneous codes that designate font size,
font style, et cetera. See ASCII.
Plate: card inserted into a slot on the motherboard to expand the
capacity of a computer.
Player: A program that lets you listen to audio files.
Plug-in: A small piece of software that adds features to already
existing, usually large, programs.
Plug & play: it means "plug and play." Immediate recognition of a
device by the computer, without user input.
PoP: Point of Presence .Internet access point.
POP3: This is a standard protocol for receiving e-mail.
Printer: peripheral that reproduces text and
images on paper. The main types are: dot
matrix, inkjet and laser.
Artificial Intelligence: simulation of human
intelligence processes by means of
Programming language: writing system for the precise description of
algorithms or programs
Protocol: A set of formal rules describing how data are transmitted,
especially through the network. The low-level protocols define
electrical and physical standards to be observed, while higher-level
protocols defining it.
Pulldown menu: A list of options that "pulls down" when you select a
menu at the top of a window. For example, the File menu in most
programs it is a pulldown menu that reveals commands such
as open, new, and save.
QBE: Query By Example .A search method for databases in which the
user fills out the form by following the examples given.
RAM memory: Random Access Memory .Readable
and writeable memory that acts as a storage area
while the computer is on, and is erased every time
the computer is turned off. This memory stores data
and helps execute programs while in use.
Repeater: A device that enhances the network signals. Repeaters are
used when the total length of network cables is longer than the
maximum allowed by the type of cable .Not all cases can be used.
Rebut: reload the operating system a computer is halted. "
Resolution: maximum number of pixels to be viewed on a screen. Two
examples: 800 x 600 and 640 x 480. / In a printer, the resolution is the
quality of the reproduced image and is measured in dpi.
ROM memory: Read Only
Memory .Readable memory that cannot
be corrupted by accidental erasure. ROM
retains its data when the computer is
Router: System consisting of hardware and software for Internet data
transmission. The sender and receiver must use the same protocol.
Scandisk: Windows program to check a disk, detects and corrects
SDRAM memory: very fast, high capacity, for servers and
Search engine: Any of a number of giant databases on the Internet
which store data on Web sites and their corresponding URLs. Some
popular search engines are Google, Yahoo!, and MSN.
Semiconductor: so called insulating substances, such as germanium
and silicon, which become conductive by the addition of certain
impurities. Semiconductors have great importance in electronics.
Serial: A method for transmitting data sequentially, ie, bit by bit.
Serial port: connection through which data is sent through a single
duct. For example, the mouse connects to a serial port. The
computers have two serial ports: COM1 and COM2.
Server: A computer or software package that provides a specific
service to client software running on other computers. The term can
refer to a particular piece of software, such as a WWW server, or to the
machine on which the software is running, hence the popular phrase:
"The server's down."
Shareware: Software distributed on a trial. After some time of use
(usually 30 days) the user has the option to buy.
Shortcut: a file that contains only the location of
another file in the computer.
Slot: slot on the motherboard that allows you to
expand the capacity of a computer by inserting plates.
SMS: Short Message Service .Messaging service for mobile
phones .Sends a message to a cell phone up to 160 characters. This
service was initially authorized in Europe. There are several websites
from which you can send a "sms".
SMTP: Simple Mail Transfer Protocol. Is a standard protocol for sending
SNA: System Network Architecture: network architecture for
mainframes, developed by IBM.
Sniffer: A program that monitors and analyzes network traffic to detect
problems or bottlenecks. Its aim is to maintain the efficiency of data
traffic. It can also be used illegitimately to capture data on a network.
Socket: (medium) power connector, socket, plug. A socket is the
endpoint of a connection. It is a method of communication between
a client program and a program on a network server.
Software: general term used for various types of computer programs
Solutions integrator: A type of consulting business that helps other
businesses it integrates new technology into their existing structure. The
technology being integrated includes: supply-chain management
systems, sales-force automation systems, e-commerce, Internet
development telecommunications, computer telephony, etc.
Sound card: it is which provides sound to a computer. One of the best
known is Sound Blaster.
Spam: Unsolicited email. It is considered unethical, because the
recipient pays for being connected to the Internet.
SQL: Structured Query Language. Programming language that s used
to retrieve and update the information in a database. It was
developed in the 70's by IBM. It has become an ISO and ANSI.
SSL: Secure Sockets Layer. Protocol designed by Netscape to provide
the company encrypted communications on the Internet.
Star Ring Topology: nodes
radiate from a hub. The hub is
different depending on the
technology used Ethernet, FDDI,
etc. The biggest advantage of
this topology is that if a node fails,
the network continues to
Switch: A network device capable of performing a series of
management tasks, including data forwarding.
Sysop: Systems operator. It is a person responsible for the operations of
a computer system or network. Part of such operations is security
checks and routine maintenance.
TCP/IP: Transmission Control Protocol/Internet Protocol. The
programming protocols invented by individuals in the U.S. Department
of Defense to carry messages around the Internet.
Technology: The application of scientific discoveries to the
development and improvement of goods and services that ideally
improve the life of humans and their environment. Such goods and
services include materials, machinery, and processes that improve
production or solve problems. In schools, technology ranges from
pencils, books, and furniture to lighting, transportation, computers,
and more. Most common references in schools imply computing or
Token ring: A ring network is a type of LAN with nodes wired ring. Each
node passes, always a control message (token) to the next, so that
any node has a token can send a message.
Topology: The "form" of the network. Three predominant types of
technologies: Bus, Star and Ring.
Trojan: (Trojan horse, Trojan horse): A program that contains malicious
code within data seemingly harmless. It can ruin the hard part.
UNIX: A multi-user operating system that was used
to create most of the programs and protocols that
built the Internet.
URL: Uniform Resource Locators. This is the address of any given site on
USB: (Universal Serial Bus) interface is a plug & play between a
computer and certain devices such as keyboards, telephones,
scanners and printers.
VGA: Virtual Graphics Array. This standard video graphics
adapter was created by IBM and has been since
improved in Super VGA, which generally supports "true
color" or 16.8 million colors.
Virtual: With regard to memory, virtual refers to temporarily storing
information on the hard drive. Virtual memory is controlled
automatically by the operating system.
Virus: A small program that "infects" a computer,
may cause undesirable effects and even
Virus Class: is a virus that affects spreadsheets Microsoft Office. He also
called W97M.Class.G. This virus is not hiding. Every time you act adopts
a different look.
Virus hoaxes: virus hoaxes usually arrive by e-mail.
WAIS: Wide Area Information Server. A software system intended to
search large database servers on the Web, and then rank the findings
WAN: Wide Area Network. This network connects several computer so
they can share files and sometimes equipment, as well as exchange
e-mail. A wide area network connects computers across a large
geographic area, such as a city, state, or country. The World Wide
Web is a WAN.
Wav: extension of a sound file called "wave" created by
Microsoft. It has become a standard audio format for
PC. It can also be used on Macintosh and other
Webmail: service offered by some web site to create a free account,
e-mail. By e-mail webmail is reviewed with the browser. You can
access it from any computer located anywhere.
WinZip: Windows program for compressing files.
Word processor: The software used to produce
documents, such as letters, posters, reports, and syllabi. Common
word processors used in schools are MS Works, MS Word, or ClarisWorks.
Workstation: Personal computer connected to a LAN. It can be used
independently of the mainframe, as it has its own applications and
your own hard disk.
World Wide Web: the Internet multimedia, which involves the insertion
of hypertext and graphics. That is, the resources created in HTML and
its derivatives. Is the global information system developed in 1990 by
Robert Cailliau and Tim Berners-Lee at CERN (European Organization
for Nuclear Research) which was the basis for the explosive
popularization of the Internet since 1993.
Website: one of the pages that make up a WWW site. A web site
covers a set of related pages. A home page is called "home page".
Worm: A program that copies itself to fill the entire memory. A virus
that normally come through the mail, as attachment.
WYSIWYG: What You See Is What You Get. Monitor output that closely
resembles the printed output. Most software now offers WYSIWYG
options, like "print preview."
Xcode: is a suite of tools for developing software on Mac OS X,
developed by Apple. Xcode 3.2, the latest
major version, is bundled free with Mac OS
X v10.6, but is not installed by default.
Instead it must be installed from the Mac
OS X DVD, or downloaded from the Apple
website. The version that is currently
available is 3.2.4 that comes with iOS SDK
4.1. Because version 3.2 is not supported on
older Mac OS versions, more dated versions
of Xcode are available free from the Apple
Developer Connection website.
XModem: A file transfer protocol for modems in which data is sent
from the Internet to the PC without acknowledgment from the PC.
Zip: compression format file.
Zip drive: removable media for data storage. Originally each zip disk
could hold up to 100 MB (megabytes) or the equivalent of 70 floppy
disks, the new version of the device can store up to 750 MB.
Zipped files Zipped files are files that are compressed and must be
"unzipped" to be read. Zipped files download faster because they are
smaller than an uncompressed equivalent.