ANALYZING TECHNOLOGY ISSUES

Computer Basics

THE IMPACT OF TECHNOLOGY ON EDUCATION

Education Internet Distance Learning Computer-Based Learning Simulations

THE IMPACT OF TECHNOLOGY ON SCIENCE

Science Artificial Intelligence Genetic Engineering Virtual Reality

THE IMPACT OF TECHNOLOGY ON WORK

Multinational Economy Electronic Commerce

THE IMPACT OF TECHNOLOGY ON OUR LIVES

Clothes that fight odor and bacteria

The flying car Voice recognition Space travel Smart shoes and smart

seats Smart houses Electronic shopping

EXPLORING TECHNOLOGY CAREERS

Business and Office Administrative Assistant Desktop Publisher/Graphic Designer

Network Support and Administration PC Support Specialist Manager of Information Systems

Web-Based Web Developer Web Master

COMPUTER CRIMES A criminal act committed through the

use of a computer. It can also involve the theft of a

computer and any equipment associated with the computer.

TYPES OF COMPUTER CRIMES

Computer fraud Conduct that involves the manipulation of a

computer or computer data in order to obtain money, property, or value dishonestly or to cause loss.

Computer hacking Involves invading someone else’s computer, usually for personal gain or just the satisfaction of invasion.

OTHER COMPUTER CRIMES Theft of computer time

An employee uses a company’s computer for personal use such as running a small business, keeping records of an outside organization, or keeping personal records.

Data diddling Changing data before it is entered into the

computer or after is has been entered into the computer.

Software Piracy Illegal copying and using of software purchased by

someone else

COMPUTER ETHICS

Using computers for good purposes Public domain

legally copy files and give to anyone Freeware

given to a user free of charge on a trial basis

COMPUTER VIRUSES

A virus is a program that has been written to cause corruption of data on a computer.

TYPES OF COMPUTER VIRUSES• Worm

• Makes many copies of itself, resulting in the consumption of system resources that slows down or actually halts tasks.

• Works slowly through files• Time bomb

• Virus that does not cause its damage until a certain date or until the system has been booted a certain number of times.

• Logic bomb• Virus triggered by the appearance or disappearance of

specified data.• Trojan horse

• Virus that does something different from what it is expected to do.

• http://www.youtube.com/watch?v=a8hZQxWC3A8

PRIVACY AND SECURITY ISSUES

Any time you submit information on the Internet, it is possible for the information to be gathered by many persons and used for various situations including being sold. Information can be gathered from online sources such as schools, banks, hospitals, insurance companies, and many other sources.

SECURITY MEASURES

Maintain and Enforce Security Measures such as:

Passwords Electronic identification cards Firewalls Antivirus software Selective hiring process

ADVANTAGES AND USES OF TELECOMMUNICATIONS

Telecommunication involves electronically transferring data. Distance learning

Allows the user to take classes without being physically present.

Teleconferencing Provides conferencing capabilities from several

locations without leaving the office, reduces costs for time and travel.

WHAT IS A BROWSER?

The software program that you use to retrieve documents from the World Wide Web (WWW) and to display them in a readable format.

Examples: Internet Explorer Netscape Communicator

TITLE BAR

The bar on top of the window that contains the name of the document.

MENU BAR

• A horizontal menu that appears on top of a window.

Provides a selection of options related to the Web page.

TOOL BAR

Icons for single-click access to most commonly used menu commands.

ADDRESS BAR

Contains the URL, or address, of the active Web page; also where you type the location for the Web page you want to visit.

GO BUTTON

Connects you to address displayed in the Address bar. Document Window displays the active Web Page

STATUS BAR

Located at the bottom of the browser; shows the progress of Web page transactions.

ACCESS INDICATOR

A small picture in the upper right corner of the browser; when animated, it means your browser is accessing data from a remote computer.

SCROLL BARS

Vertical and horizontal scroll bars; lets you scroll vertically and horizontally if the Web page is too long or too wide to fit within one screen.

WHAT IS EMAIL? Email, or electronic mail, is similar to

regular mail. You have a message, an address, and a carrier that figures out how to get it from one location to another.

Email is used to stay in touch with family and friends, conduct business, and send attachments such as text and image files.

ADVANTAGES AND USES OF EMAIL

Faster way to communicate and respond Quick and easy way to send messages Forward messages to other individuals Send messages to multiple individuals Include attachments such as pictures,

audio files, and documents

EMAIL TERMINOLOGY Inbox Outbox Sent Items Deleted Items Drafts New Message Send Address Book

ELECTRONIC MAIL ADDRESSES

The address consists of three parts:• The user name of the individual• The @ symbol• The user’s domain name

Example: rsmith@yahoo.com

WHAT IS A SEARCH ENGINE? A tool that lets you find Web pages that

match a particular word or phrase. Examples of search engines:

Altavista Google HotBot InfoSeek Excite

SEARCH ENGINE TERMINOLOGY

Search expression Index Spiders or bots Meta tags Directory Keyword search Hyperlink

BACKGROUND OF THE INTERNET

Early origin in 1960s Closely tied to a networking project

started by a governmental division called the Advanced Research Projects Agency.

Original name: ARPANET Created so that scientists were able to

share information on military and scientific research.

FEATURES OF THE INTERNET The World Wide Web

Began in March 1989 when Tim Berners-Lee wrote a small computer program for his personal use.

WEB PROTOCOLS HTML

Hypertext Markup Language A series of tags that are integrated into text

documents and describes how the text should be formatted when a Web browser displays it on the screen.

HTTP Hypertext Transfer Protocol

Standard that defines how messages are formatted and transmitted.

CHAT ROOMS Using the computer to create real-time

communication between yourself and another user or a group of users. Internet Relay Chat (IRC)

A text-based chat developed by Jarkko Oikarinen in 1988.

One of the most widely used chat forums on the Internet today.

CHAT OPTIONS Web chat

Incorporates graphics, audio and video Hosted by search engines such as Yahoo,

Snap, and Excite. Proprietary chat

Requires that you download and install software from a company.

Examples are Microsoft Chat, AOL, and Prodigy.

Buddy lists You specify your list of friends and even tell

when they are online. Examples are ICQ and AOL Messenger

MAILING LISTS A group of people with a shared

interest. Their email addresses are collected into

a group, and this group is identified by a single name.

When a message is sent to the group, everyone on the list receives that message.

NEWSGROUPS

• A discussion forum or a type of bulletin board.

• Each board is dedicated to discussion on a particular topic.• USENET

• Worldwide network of computers that facilitates the transmission of messages among the news servers.

RESEARCH ON THE INTERNET

• Two basic tools used to find information:• Search engines

• Used to search for keywords.• Subject directories

• Used to find specialized topics.

TYPES OF SEARCH ENGINES Keyword Search

Uses keywords to perform search Multimedia Search Engines

Used to find graphics, video clips, animation, and MP3 music files.

Meta Search Engines Search several major search engines at one time.

Subject Directories Organized by subject categories and displayed in

a series of menus.

TOOLS AND TECHNIQUES

Phrase Searching Search Engine Math Boolean Operators Wildcard Searching Title Searching

PHRASE SEARCHING

A phrase is entered using double quotation marks and only matches those that appear adjacent to each other and in the order in which you specify. Example: “baseball cards”

SEARCH ENGINE MATH Symbols used in formulas to filter out

unwanted listings. Use the plus symbol (+) before words that

must appear. Also known as an inclusion operator.

Use the minus symbol (-) before words that you do not want to appear.

Also known as an exclusion operator.

BOOLEAN OPERATORS

Boolean logic consists of three logical operators: AND NOT OR

WILDCARD SEARCHING The * symbol, called an asterisk, is

considered a wildcard character. Used if you don’t know the spelling of a

word Example: N*Ryan to search for Nolan Ryan

Used to search plurals or variations of words.

TITLE SEARCHING

Searching the title of a web page.

When a web page author creates a Web page, the Web page generally contains a HTML title.