The Internet

Internet Search Engines
Individual and Meta-serarch Engines
Individual search Engine
Uses computer programs called “spiders”, “crawlers”, or “robots” to match key search words with web pages
Meta-Search Engine
Compiles results to eliminate duplications yielding fewer results
Internet Search Tools
Search Engines, Subject Directories
Subject Directories
Searchable databases that are developed and maintained by human selection of sites
Internet Search Methods
Keywork, Field, Boolean Logic, Miscellaneous
Keyword
“Search String” Keying a main idea, phrase, or concept in a search box
Field
Search conducted for a specific title, domain, URL. or host
Boolean Logic
Uses operators such as, AND, OR, and quotation marks
AND
Narrows results by searching for pages that contain both keywords
OR
Expands results by searching for pages that contain either of the keywords
Miscellaneous Search Methods
Different language support, Spell Checker, Phonebook, Math/equivalents
Different language Support
searches for words in different languages
Spell Checker
gives suggestions if the word keyed for the search is mispelled
Phonebook
Uses phone numbers to search for locations and addresses
Math/equivalents
solves basic math problems and converts equivalents
Google
Individual Search Engine
Surfwax
Meta-search engine
http://scholar.google.com/
Suject Directory
URL
Uniform Resource Locator
Components of a URL
Protocol, Domain name, Directory/folder
Protocol
are rules that determine how the Internet handles message packets flowing on it.
Domain Name
Used to identify the details of the information’s source in an URL
Server/host name
The origin of the information
Suffix/extension
Used to indicate the type of server, such as org.edu.,mil
Directory/folder
Instructs the URL to drill down into specific directories of folder for requested information
Page/document/filename
used to indicate a specific document or program
Tilde (~)
Indicates a personal web page
.exe
Indicates an executable program
Equals (=)
Indicates a specific document or program
Question Mark (?)
Indicates a query
Creator
Information that confirms the author is who he/she claims to be
Fair Use
when people use other peoples work freely
Copyrighted
Published work that has been protected to keep others from freely using it
Validate
To verify or prove that something is what it says it is or does what it says it’s supposed to do
Authentic
Genuine, real, original, true
Electronic Communications
Chatting, Blogs, Podcasting, Discussion Boards, Text Messaging, Email
Chatting
talking in real-time to other network users from all parts of the world
Blogs
web-based journal
Podcasting
Publishing files to the internet, allowing users to subscribe to a feed and receive new files automatically
Discussion Boards
On-line bulletin boards that provide a forum for users to post and respond to messages
Moderated Discussion Board
An administrator and/or Moderator monitor discussion threads for content and netiquette
Un-moderated Discussion Board
Discussions are at free will
Text Messaging
Keyed messages relayed via a pager or cell phone
Email
Electronic exchange of messages and files that are connected to the internet
Components of an email
Header, Body, Signature, Attachment
Sections of an email Header
Addressee (TO), Author (FROM), Date, Subject
Body
The message of the memo
Signature
The name and contact information of the sender
Attachment
Files that are sent along with the email
Subject
The topic of the message
CC
Notation for additional recipient names and addresses
BCC
Notation for recipient(s) that are hidden from view
E-mail Netiquette
Do not key in all caps or in all lower case! Using all caps symbolizes yelling
Virus
Software that attaches to programs that are installed on a user’s pc
Spam
unwanted and unsolicited email advertisements or messages
Spyware
malicious software designed to take partial control of a computer’s operations without the consent of the user
Internet Safety Guidelines/Precautions
Avoid yelling, Bullying, Explicit material,
Website is Secure
https, interactive lock, verisign, Seal
SMTP
handles outgoing email messages, determining the paths an email message takes on the Internet.
electronic mail
“Email” is short for
user name
usually identifies one person’s email account on a mail server.
mail client software
The software that requests mail delivery from the mail server to an Internet device is known as
a single mail server to manage the email they send and receive
Most organizations have
message header
contains information about the message.
signature
might appear at the bottom of an email message and contain standard information about the sender.
category or group
A single email address that can represent several email addresses is called
attachment
When you send along a complex document or graphic as part of your email, you send it along as a(n)
read-only
file is a file you can view but cannot change.
The email address [email protected] is the same as the email address
Email Acronyms