an introduction computer technology - informatika … · an introduction computer technology...

An Introduction Computer TechnologyPengantar Teknologi KomputerMPA 019MPA-019

Arie Budiansyah - Infor.matika:MIPA – Syiah Kuala University 1

Learning OutcomesOn successful completion of this course, all students should be able to:· understand basic terminology used in computer sciencegy· developed knowledge and understanding of the main components and operation of a computer system· understand the interaction between computers and input/output devices· use important application software packages.· understand the dynamics of internet and effectively use the Internet facilities for research

d l k l d d d t di f th b d i d· develop knowledge and understanding of the web page design and maintenance· design and trace the algorithms and flowcharts

t l t l ith d fl h t t "C" i l· translate algorithms and flowcharts to "C" programming language· write basic "C" programming language applications· work in a team and networked organization· Learn to share responsibilities· Learn to share responsibilities

2Arie Budiansyah - Infor.matika:MIPA – Syiah Kuala University

LABORATORIUM


LAB Handout

Laboratory Experiment#1(Hardware d W d P i ) HARDWARE WORDand Word Processing): HARDWARE, WORD

PROCESSING Laboratory Experiment#2 (Creating Web

Pages with Microsoft Front Page):FRONTPAGE

Laboratory Experiment#3 (Spread Sheets-y p ( pExcel): EXCEL


Rationale and Goals This lab introduces the fundamental concepts of computers for the

first year students, assuming that they might have have no previous y g y gknowledge of computer science.

In the lab sessions the students will study the following;

1. Familiarization with the hardware of a computer system. Disassembling and assembling a computer2. Using the DOS editor, saving, cutting, pasting, deleting, copying.3. The Windows Operating System: What is an OS; OS functions such as saving, cutting, pasting, deleting, copying.4. Packaged Software: Word processing and desktop publishing; basic functions of WP; writing; style; spell-check, grammar-check and Thesaurus; choosing a program, desk-top publishing.5. Spreadsheets and Database: Spreadsheets, Graphics; Database, d t t t t fil tdata structures; reports; file management.


Objective

The aim of this lab is to familiarize the students with the usage of a computer in order to give them a strong g gfoundation, which will not only help them to compete with the standards ofthem to compete with the standards of 21st century, but will also be useful for their future coursestheir future courses.


Computers: Information Technology in Perspective 11eInformation Technology in Perspective, 11e

L L d N LLarry Long and Nancy Long

Chapter 1The Technology RevolutionThe Technology Revolution

Copyright Prentice Hall, Inc. 7

Objectives Once you have read and studied this chapter, you will

have learned: How information technology influences our society and you at How information technology influences our society and you at

work, at home, and at play. What it means to achieve IT competency and become an active

participant in our information society.p p y How local and worldwide computer networks impact businesses

and society. Essential hardware, software, and computer system terminology , , p y gy

that will enable you to begin your information technology learning adventure with confidence.

The relative size, scope, uses, and variety of available computer tsystems.

The fundamental components and capabilities of an IT system. A variety of enterprise computing and personal computing

li ti

8

applications.

Copyright Prentice Hall, Inc.

Why this chapter is important to you!

Computers and technology are a part of thi deverything we do

Computers and new technologies will continue to play an even greater role in the future

Computers help make work tasks easierp p The more you know about computers the more

money you are capable of earningmoney you are capable of earning


Our Information Society

Ask yourself what it ill b lik i th

IT changes how we k l dwill be like in the year

2010work, learn, and communicate

Most adults are considered

Knowing computers will help you cope

knowledge workers with IT


The Technology Revolution: Today

At Work The mobile worker Productivity Communication Access

At Home Communication Personal correspondence Homework Connection

At Play Leisure activities Communication Gaming

C i


Connection

The Technology Revolution: Tomorrow

Search for a home around the countryaround the country

Obtain a doctor’s consultation viaconsultation via telemedicine

Information Information superhighway will connect every facet ofconnect every facet of our society


Looking Back a Few YearsLooking Back a Few YearsH

ENAIC & UNIVAC I

PCs introduced!

Home computers & networks

1960s 2001

1950 mid-1970sVery

expensive Powerful PCs

2003

computers for large

companies.

Powerful PCs on every desktop.

Explosion ofComputer professionals ran the show.

Explosion of applications.


ran the show.

Rx for Cyberphobia: InformationRx for Cyberphobia: Information Technology Competencygy p y Feeling comfortable Making the computer work Making the computer work

for you Interacting with theInteracting with the

computer Comfortable in cyberspace Understanding the impact of

computers on societyM ki i t lli t d i i Making intelligent decisions

Knowing the lingo


Reasons to Become IT CompetentReasons to Become IT-Competent

Personal Travel arrangements

Educational Any time any place Travel arrangements

Sports scores Managing finances

Any-time-any place learning

Individual learning Managing finances

Workplace Strategic planning

Societal Ethical issuesg p g

Competitive advantage Obtaining work

Harmful risks

Curiosity Day-to-day processes Productivity

Natural curiosity for IT power


The Computer Proficiency Digital Divide

120 million people are considered knowledge

Questions to ask: Can you list five critical ITconsidered knowledge

workers 100 million are not

Can you list five critical IT issues?

Which port is faster, USB 100 million are not considered IT competent

Most think they are IT

or 1394? When should you use your

defragmenter?Most think they are IT competent

defragmenter? What type of wiring do you

need for a home network? The list goes on and on…


The NET Connection:The NET Connection: Our Global Village

Over 80% of classrooms and libraries in the USand libraries in the US are linked to the Internet

Most computers in the workplace are part of a network

Worldwide networks Worldwide networks coordinate services and consumer goods

Global economy is changing


The Net Connection:The Net Connection: The Internet The Internet connects millions

of computers in every country all over the worldall over the world

All colleges and most businesses have access to the InternetInternet

Most subscribe to an ISP to gain Internet access

Others subscribe to an Others subscribe to an information service, such as AOL

A modem permits access via pphone and/or cable

Individuals can access Web sites, music, products and lots


more

The Basics: Hardware

A computer system: Inputp

Keyboard/Mouse Processor

Chip p Output

Monitor/Printer Storage Storage

Permanent (Hard Disk) Temporary (RAM)

A processor is the heart A processor is the heart of the computer


The Basics: Software

Software tells the computer what to docomputer what to do

System software takes control of the computer upon start up Windows DOS DOS

Application software performs specific task Word Excel


The Basics: Computer Systems

Low end $500 desktop High end very expensiveHigh end very expensive

supercomputer High/low end all have same

four system components:four system components: Input Processing Output Output Storage


Personal Computers

1981: IBM PC Many manufacturers

followed with 100% IBM PC compatibles

Other PCs: Apple Power Mac Powerbook iMac


Notebook PCs

Early notebook PCs did not have the power of a desktop PCPC

Now notebooks offer the same level of performanceNotebook PCs: Notebook PCs: Light Compact Portable Portable A docking station is used to

configure the notebook to act like a larger desktopg

Ports allow devices to be connected, such as a printer


Desktop PCs

Typical Desktop PC: Motherboard Motherboard Keyboard Point and draw device Monitor Printer Hard disk Hard disk Floppy CD-ROM or DVD-ROM

Mi h Microphone Speakers


Wearable PCs Cable connected modules that fit

into headsets, drape on h ld h d th kshoulders, hang around the neck,

or more TLC PC for paramedics is a good p g

example As time goes on vendors will be

concerned with fashion as wellconcerned with fashion, as well as function

The Body Net is a great example


Handhelds

Specifically designed to be held in the handbe held in the hand

Example: Palmtop PDA Organizer

Some have wireless Some have wireless capability

Use an electronic pen toUse an electronic pen to work with most


Thin Clients

Looks like a PC Small Less RAM No internal hard disk Less expensive Less expensive Depends on a central

t knetwork


Workstations

For power usersF t t hi Faster at crunching numbers

Typically has a large Typically has a large-screen color monitor

Point and draw devices Point and draw devices can be combined

Add-on keypads can Add on keypads can expand functions


Server Computers

Center of networks Can be a PC or a Can be a PC or a

supercomputer A client computer p

requests resources for the server computerS b k d Server runs back-end applications

Client runs front-end Client runs front-end applications


Supercomputers

Supercomputers address processor-boundprocessor bound applications

100 times faster than a corporate server

Today use: Ai l i l ti Airplane simulation Auto accident simulation Advanced graphics for g p

movies And lots more…


Computer System CapabilitiesComputer System CapabilitiesProcessing Data and Producing Information

Information used to be only collected sortedonly collected, sorted, summarized, exchanged and processedp

Now information communicates, makes money available via ATMs, teaches, and lots more


Computers in Action:Computers in Action: A Payroll System Most organizations

use a payroll systemuse a payroll system The system enables

input and processesinput and processes the checks

The system also The system also processes reports and storesand stores information


What Can a Computer Do?What Can a Computer Do?Computation Operations

Computers can: Add SubtractMultiply Divide Do exponentiation


What Can a Computer Do?What Can a Computer Do?Logic Operationsg

Computers have the plogical capability to compare between pnumbers and between words


The Computer’s Strengths

SpeedA Accuracy

Consistency Reliability Communications Memory capability Human vs. computerHuman vs. computer

capabilities


How Do We Use Computers?

Enterprise Computing I f ti t Information systems Process/device control Science research & Science, research, &

engineering Personal Computing Personal Computing

Games Education EducationWork


Computer Decisions

Purchasing decisions Software decisions

Word processing Presentation Spreadsheet Database And more…


Summary

Our Information Society IT competencyGetting connectedGetting connected Knowing the hardware basicsP l t t tPersonal computers to supercomputersComputer system capabilitiesUsing computers


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