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Concepts of Information Systems

Chapter 1

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Overview

Explain Information System PartsDistinguish Software Types

Define Application Types

Identify Computer Types

Describe Different Types of Hardware

Describe Different File Types

Explain Computer Connectivity

Explain the Internet

Explain Cloud Computing

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Introduction

Notable Technology Prognostications

“I think there is a world market for maybe fivecomputers.” 

Thomas Watson, Chairman of IBM, 1943

“Computers in the future may weigh no more

than one and a half tons.” 

Popular Mechanics, 1949

“There is no reason anyone would want acomputer in their home.” 

Ken Olson, President of DEC, 1977

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Introduction

Computer Use

Everywhere

Impact Virtually Everyone

Creation, Collection, Dissemination

Price/Power

Competition

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Introduction

Computer Competency

Popular Application Packages

Internet

Parts of an Information System

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Information Systems

People

AKA End Users

Procedures

Guidelines for Hardware & Software Use

Software

Step-by-step Instructions for Computer

Hardware

Processes Data to Create Information

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Information Systems

DataRaw, Unprocessed Facts

Connectivity

Share Information with Other Users

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People

Most Important Part of System

Uses

Business

Education

Entertainment

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Software

AKA Program

Series of Instructions

Tells Computer What to Do

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Software

Systems SoftwareOperates in “Background” 

Manages Computer Internal Resources

Operating System

Coordinates Resources

Provides User Interface (UI)

Runs Applications

Utilities

Device Drivers

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Software

Application Software

Performs Tasks for End Users

General Purpose

Specialized

Focused on Specific Occupations

Mobile

Designed for Smartphones, Tablets

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Hardware

Computer Types

Supercomputer

Most Powerful

Mainframe

Accommodates Thousands of Users

Servers

Networked Environments

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Hardware

Computer Types

PCs (Microcomputers)

Most Widely Used

Desktop

Notebook

Tablet

Handheld

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Hardware

Platform Comparison

Platform  Size  Users  Price 

Microcomputer (PC)  Desk  1  < $3,000 

Mobile  Lap / Hand  1  < $3,000 

Game Console  Desk  1 – 2+  < $1,000 

Embedded  Miniature  1  Included in Item Price 

Server  Cabinet  2 – 1,000  $1,000 - $1,000,000 

Mainframe  Room  100 – 1,000+  $300,000 - $1,000,000+

Sabre = 14000/s 

Supercomputer  Room  100 – 1,000+  $1,000,000 +

Kasparov 

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Hardware

Microcomputer Hardware

Secondary Storage

Hard Disk

USB

Communication

Modem

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Data

Raw, Unprocessed Facts

Text

Numbers

Images

Sounds

Stored Electronically in Files

Used as Input for System Unit

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Connectivity

Sharing Info with Other ComputersWireless Revolution

Network

Communications System

Connects Two or More Computers

Internet

Web

Multimedia Interface to Internet Resources

Cloud Computing

Shift Activities from User's Computer to Internet

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