Computer applications in_modern_day_society

Computer Applications in Modern day society(Internet and WWW)

CEN 100 Week 2.Raju.MULLAGIRI

04/10/2023Copyright © 2012 Pearson Education.

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Used to shareUsed to share

A network is a collection of computers and devices connected together

Networks and the Internet

ResourcesResources

Hardware devices

Hardware devices

Software programs

Software programs

DataData To save time and

money

To save time and

money

InformationInformation

Next


3

What is the Internet [DoD – 1969]?

Networks and the Internet

Next

Worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals


4

Networks and the InternetWhy do users access the Internet (1969)?

2. Information

3. Shopping

4. Banking and Investing

5. Classes

6. Entertainment

Next

1. Communications

7. Download Music

8. Share Information


5

What is the Web (1989)? Networks and the Internet

A Web site is a collection of

related Web pages

A Web site is a collection of

related Web pages

A Web page contains text, graphics, audio, video, and links to

other Web pages

A Web page contains text, graphics, audio, video, and links to

other Web pages

You can share information on a socialnetworking Web site

You can share information on a socialnetworking Web site

Next

Billions of documents, called Web pages, available to anyone connected to the Internet

A blog consists of time-stamped articles in

a journal format

A blog consists of time-stamped articles in

a journal format

A podcast is recorded audio

stored on a Web sitethat can be

downloaded

A podcast is recorded audio

stored on a Web sitethat can be

downloaded

Difference between the Internet and the WWW


6

What are the two most popular series of personal computers?

Personal Computers

Next

Apple Macintosh usually uses the Macintosh operating system (Mac OS X)

PC and compatibles use the Windows operating system


7

What is a desktop computer?Personal Computers

Next

Designed so all of the components fit on or under a desk or table


8

What is a notebook computer?

Mobile Computers and Mobile Devices

Next

Portable, small enough to fit on your lap

Also called a laptop computer

Generally more expensive than desktop computers with equal capabilities


9

What is a Tablet PC?


Next

Especially useful for taking notes

Resembles a letter-sized slate Allows you to write on the

screen using a digital pen

Can you say UPS, FEDEX, DHL?


10

What is a handheld computer?


Next

Sometimes referred to as an ultra-personal

computer (uPC), or an Ultra-Mobile PC

(UMPC), or a handtop computer

Small enough to fit

in one hand

iPad, etc. !!


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What is a personal digital assistant (PDA)?


Next

Provides personal organizer functions Calendar Appointment book Address book Calculator Notepad


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What are smart phones?


Next

A smart phone isan Internet-enabled

telephone that usuallyprovides PDA capabilities

Like the iPhone, Treo, Android (‘Droid) etc.


13

What are game consoles?

Game Consoles

Next

Mobile computing device designed for single-player or multiplayer video games

Like the Xbox, Wii, Sony PlayStation3


14

What types of servers are there?

Servers

Mainframe Very powerful, expensive computer that supports thousands of connected users[Also called an Enterprise Server]

Supercomputer The fastest, most powerful, most expensive computer. Used for applications requiring complex mathematical calculations

Next

Server Controls access to network resources and provides centralized storage


15

What is an embedded computer?

Embedded Computers

A special-purpose computer that functions as a component in a larger product

Next


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Consists of a seriesof instructions thattells the computer

what to do andhow to do it

Consists of a seriesof instructions thattells the computer

what to do andhow to do it

What is software?

Computer Software

Next

Also called aprogram

& DATA

Also called aprogram

& DATA


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What is a graphical user interface (GUI)?

Computer Software

Next

Allows you to interact with the software using graphics and visual images such as icons

Controls how you enter data and instructions and how the screen displays information


18

What is system software?

Computer Software

Operating System (OS)is a set of programs that coordinates all activities among computer hardware devices

Operating System (OS)is a set of programs that coordinates all activities among computer hardware devices

Utility Programs allow the user to perform maintenance-type tasks usually related to managing a computer, its devices or its programs

Utility Programs allow the user to perform maintenance-type tasks usually related to managing a computer, its devices or its programs

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Programs that control or maintain the operations of the computer and its devices


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What is application software?

Computer Software

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Presentation Graphics

Spreadsheet

Database

Word Processing

Programs designed to make users more productive

Create/Produce useful data


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How do you install and run programs?

Computer Software

Next

Step 1: INSTALLWhen you insert a greeting card program discin the CD drive for the first time, the computerbegins the procedure of installing the greetingcard program on the hard disk. Step 2: RUN

Once installed, you can instruct the computer to run the greeting card program. The computer transfers instructions from the hard disk to memory.

Step 3: USEThe greeting card program executes. Using this program, you can create custom greeting cards.


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What is a programmer?

Computer Software

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Someone who developsapplication or system software Programmer writes

the instructions todirect the computer toprocess data intoinformation


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Categories of Computers

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What are the categories of computers?Personal Computers

(desktop)

Mobile Computers andMobile Devices

Game Consoles

Servers

Mainframes

Supercomputers

Embedded Computers


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What software is available for a home user? Personal Finance Management Web access Communications Entertainment (Games)

Examples of Computer Usage

Next


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What software is available for a small office/home office (SOHO) user?


Productivity software Specialty software Web usage E-mail (Games)

Next


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Hardware Notebook computers Tablet PCs Internet-enabled PDAs Smart phones

What is available for a mobile user?


Software Word processing Spreadsheet Presentation graphics

software

Next


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What are the needs of a power user?


Next

Extremely fast processors Types of power users

Engineers Scientists Architects Desktop publishers Graphic artists


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What are the needs of the large business user?


Next

Payroll Inventory E-commerce Desktop publishing


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What are some examples of computer applications in society?

Computer Applications in Society

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Education Finance Government Health Care Science Publishing Travel Manufacturing

04/10/2023

Web-based applications◦Internet messaging (IM)—free, real-time

connection Two or more parties can use a buddy list to

identify and restrict the contacts the person wishes to communicate with

◦Social networks—include Facebook, MySpace, LinkedIn, and Twitter

Copyright © 2012 Pearson Education. 29

Computers, Society, and You

04/10/2023

Collaborative work◦ Computer forensics—branch of forensic science

that deals with legal evidence found on computers, and is used to find and apprehend criminals

◦ Collaborative software includes: Google Docs—free Web-based word processor and

spreadsheet Wiki—collection of Web pages designed to let

anyone with access contribute or modify content Google Groups—free service that helps users

connect, share information, and communicate effectively over the Web



04/10/2023

Advantages and Disadvantages of Computer Use



04/10/2023

When using computer hardware:◦ Do not plug too many devices into electrical

outlets.◦ Use surge protectors.◦ Place hardware where it can’t fall or be

damaged.◦ Provide adequate space for air circulation

around hardware.◦ Securely fasten computer cables, cords,

and wires.Copyright © 2012 Pearson

Education. 32


04/10/2023

Ergonomics—field of study concerned with the fit between people and their work environment

Carpal tunnel syndrome (repetitive strain injury or cumulative trauma disorder)—caused by repeated motions that damage nerves in hands, wrists, and arms



04/10/2023

Promote safety and comfort◦ Position top of your monitor at eye level◦ Tilt the monitor back 10 to 20 degrees◦ Place it at least 20” from your eyes◦ Keep your wrists flat—use a wrist rest if needed◦ Rest your eyes often by focusing on an object

20 or more feet away◦ Stand and stretch periodically



04/10/2023

Software programs◦Contain flaws

Errors cause programs to run slowly or miscalculate.

Bugs are almost impossible to eliminate completely.



04/10/2023

Computer ethics◦Moral dilemmas relating to computer

usageDigital piracy

◦ Unauthorized reproduction and distribution of computer-based media

Unethical behavior◦ Sending viruses, stealing credit card

information, computer stalking, and installing illegitimate copies of software on computers



04/10/2023

Computers provide those who are disabled and disadvantaged with added support and opportunities

E-learning◦ Learning without requiring students to be at

a specific location at a specific time



04/10/2023

Automation◦Replacement of people by machines and

computersOutsourcing

◦ Subcontracting of portions of a job to a third party to reduce cost, time, and energy.

Computer technology◦ Aided globalization and the resulting

outsourcing of jobs, as well as structural unemployment—the obsolescence of certain jobs.



04/10/2023

Be a responsible computer user:◦Understand how your computer use

affects others.◦Obey laws and conform to requests

regarding use of cell phones.◦Be aware of e-waste and the proper

disposal of outdated computer hardware.



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Computer applications in_modern_day_society