Importance of Computer (Unfinished)Move

7/30/2019 Importance of Computer (Unfinished)Move

1/51

THE

COMPUTER


2/51

Recognize the importance of

computer

Define the term computer and identifyits components

Explain why a computer is a

powerful tool

Recognize the purpose of a network

Discuss the uses of the Internet and the

World Wide Web

Distinguish between installing andrunning a program

Identify the types of software

Describe the categories of computers

Determine how the elements of aninformation system interact

Identify the types ofcomputer users

Discuss various computerapplications in society

A World of Computer!!!


3/51

A century ago, first industrial revolution was

experienced and a lot of countries participated in

industrial revolution. After sometime, we are again in

the stage of information revolution and Computer plays

a vital role in information revolution. Many electronic

devices are explored up to date, but the impact of

Computer is much more than any other device. Now-a-

days it is understood that the literacy of Computer isinevitable.


4/51

IMPORTANCE

Complex and frequent calculations can be made

accurately and speedily.

Vast amount of information can be stored.

Information can be supplied whenever need arises.

Automatic corrections and modifications are as easy as to

strike a key.

Charts/Graphs can be prepared and printed as per the

information.

Can be used as a communication device using different

networks.


5/51

C.A.D. (Computer aided designing):- Engineers, Architects

and artists use this facility to resolve the problem facedduring their research and designing.

C.A.M. (Computer aided Manufacturing):- Manufacturers

use this facility to automate their manufacturing process.

Modeling and acting have great benefits of computer.

Medical science, Meteorology, Social science, Geology,

etc. have lot of development due to the computer.

Record keeping is maintained easily in large industrial,

business and commercial organizations.


6/51

Office automation made possible due to computer

applications.

Library science, Police department, Hospital and Hotel

management utilize the great advantage of having

information storage due to computer.

Railway reservation system, Net-banking, ATM are the

flashing examples of Computer Networking.

In short, no body can remain out of this channel for long.

Each and every section need computer now-a-days.


7/51

A World of Computers

What is computer literacy? Knowledge and understanding

of computers and their uses

Computers are everywhere


8/51

How is a computer defined?

What Is a Computer?

p. 6

Produces and stores results

Electronic device operating under the control of

instructions stored in its own memory

Processes data intoinformation

Data that is organized,meaningful, and useful

Acceptsdata

Raw facts, figures, andsymbols


9/51

What Is a Computer?

What is the information processing cycle?

Input

Process

Output

Storage Communication


10/51

The Components of a Computer

Input devices

Output devices

System unit

Storage devicesCommunication devices


11/51


What is an input device?

Hardware used

to enter data

and instructions


12/51


What is an output device?

Hardware that

conveys

information

to a user


13/51


What is the system unit?

Box-like case

containing

electronic

components

used to processdata


14/51


What are two main components on the motherboard?

Central Processing Unit (CPU)

Also called a processor

Carries out instructions that tell computer what to do

Memory

Temporary holding place for data and instructions


15/51


What is storage?

Storage media

Physical material on which data, instructions,

and information are stored

Storage device

Records and retrieves items to and from

a storage medium

Holds data, instructions, and information

for future use


16/51


What isstorage media?

Digital

cameras

Handheld

computers

Portable, thin

memory cards

used in:


17/51


What is a floppy disk?

Thin, circular,

flexible disk

enclosed in rigid

plastic shell

A USB flash drive is

portable, and has

much greater

storage capacity


18/51


What is a flash drive?

Provides much

greater storage

capacity than a

floppy disk or

Zip disk

Small and

lightweight enough

to be transported

on a keychain or

in a pocket


19/51


What is a hard disk?

Provides much

greater storage

capacity than a

floppy disk or

USB flash drive

Housed inside the

system unit


20/51


What is a compact disc?

Flat, round, portable metal disc

CD-ROM

CD-RW

DVD-ROM

DVD+RW


21/51

Accuracy Communications

Why Is a Computer So Powerful?

What makes a computer powerful?

Storage

Reliability

andConsistency

Speed


22/51

One type is

a modem

Networks and the Internet

What is a network?

Enables a

connection

between

computers

Cables

Cellular

radio

Telephone

lines

Satellites

Communications

Media

Communications

Device

Collection of computers and devices connected together


23/51

To share


What are the reasons to network?

Resources

Hardware

devicesSoftware

programs

DataTo save

timeand

money

Information


24/51


What is a server?

p. 10 Fig. 1-8

Manages the

resources on

a network

A client accesses

the resources

on the server


25/51


What is the Internet?

Worldwide collection of networks that connects

millions of computers


26/51


Why do users access the Internet?

2. Information

3. Shopping

4. Banking and Investing

5. Classes

6. Entertainment

1. Communications


27/51


What is the Web?

A Web site isa collection of

related Web pagesA Web page contains

text, graphics, sound,

video, and links to

other Web pages

You can share

information bycreating Web pages

or posting photos on

a photo community

Billions of documents, called Web pages, available to

anyone connected to the Internet


28/51


LAN (Local Area Network)

Confined to a single building or a group of buildings.

Connect personal computers.

WAN (Wide Area Network)

Consists of two or more LANs.

The largest WAN is ?


29/51

Computer Software

How do you install a software program? A program is a series of instructions that tells the

computer what to do


30/51

Computer Software

What is a graphical user interface (GUI)? Allows you to

interact with the

software using

graphics and icons

Controls how you

enter data and how

the screen displays

information


31/51

Computer Software

What issystem software?

Operating System (OS)is a set of programs

that coordinates all

activities among

computer hardware

devices and allowsusers to run

application software

Utility Programsallow the user toperform maintenance-type tasks

usually related to managing a

computer, its devices or its programs

Programs that control the operations of the computer

and its devices

C S f


32/51

Computer Software

What isapplication software?

Presentation

Graphics

Spreadsheet

Database

Word

Processing

Programs designed to make

users more productive and

assist them with personal

tasks.

C S f


33/51

Computer Software

What is aprogrammer? Someone who develops

application or systemsoftware

Programmer writes

instructions todirect computer to

process data intoinformation

Javascript program

Resulting Internet application

C i f C


34/51

Categories of Computers

Personal computers (desktop)

Mobile computers

and mobile devices

Midrange servers

Mainframe computers

What are the categories of computers?

Supercomputers

P l C


35/51

Personal Computers

What are the two most popular series ofpersonal

computers?

PC and compatibles

use the Windows

operating system

Apple Macintosh

uses the Macintosh

operating system(Mac OS)

P l C


36/51

Personal Computers

What is adesktop computer?

Designed so all of the components fit on or under

a desk or table

P l C


37/51

Personal Computers

What is anotebook computer?

Portable, small enough

to fit on your lap

Also called a laptop

computer

Generally more

expensive than a desktop

computer

H dh ld C


38/51

Handheld Computers

What is atablet PC?

Especially useful for taking

notes

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

screen using a digital pen

H dh ld C


39/51

Handheld Computers

What are Web-enabled handheld computers?

Allow you to check e-mail

and access the Internet

Web-enabled telephone is

a smart phone

H dh ld C


40/51

Handheld Computers

What is ahandheld computer?

Used

by mobile

employees such as

meter readers and

delivery people

Small

enough to fitin your

hand

H dh ld C t


41/51

Handheld Computers

What is apersonal digital assistant (PDA)?

Provides personal organizer functions

Calendar

Appointment book

Address book

Calculator

Notepad

S


42/51

Servers

What types of servers are there?

Midrange server Powerful, large

computer that supports up to a few

thousand computers

Mainframe Very powerful,expensive computer that supports

thousands of computers

Supercomputer The fastest, most

powerful, most expensivecomputer. Used for applications

requiring complex mathematical

calculations

El nt f n Inf ti n S t


43/51

Elements of an Information System

What are information system elements?

People

Procedures

Data

Software

Hardware

E mpl f C mp t r U


44/51

Examples of Computer Usage

What are five categories of computer users?

E amples of Comp ter Usage


45/51


What software is available for a home user?



46/51


Local area

network (LAN)

Productivity

software Specialty

software

Web usage

E-mail

What software is available for a small

office/home office (SOHO) user?



47/51

Hardware


What is available for

a mobile user?

Software

Productivity Presentation

Personal

information

manager



48/51


What are the needs of the large business user?

Web access

Public kiosk

TelecommutingNetwork

Productivity software

Scheduling



49/51


What are the needs of a power user?

Speed and large amounts of storage

Types of power users

Engineers

Architects

Desktop publishers

Graphic artists

Computer Applications in Society


50/51

Computer Applications in Society

What are some examples

of computer applications

in society? Education

Finance

Government Healthcare

Science

Publishing

Travel Industry

Presented by:


51/51

Presented by:

Irish Juli Shane Bunuan

Vanessa Domingo

Jamyka YastoRylle Von Rykker Villarde

Billy Aresta

Documents

Importance of Computer (Unfinished)Move