Succeeding with Technology Chapter 1

Succeeding with Technology 4th ed > Why Study Computers and Digital Technologies?

Please discontinue use of cell phoneand turn off the ringer.

What is a Computer? The Power of Connections What Can Computers Do? Information Systems Using Digital Technologies to Succeed in

Your Career Using Digital Technologies to Achieve

Personal Goals Information Security and the Social Impact

and Implications of Digital Technologies

Why Study Computers and Digital Technologies?

Chapter 1

Succeeding with Technology 4th ed > Why Study Computers and Digital Technologies? >

Key Terms Computer literacy Computer Technology Digital electronics

device Bit Byte File Data

Digitization Information Microprocessor Kilo, Mega, Giga,

etc Hardware Software Personal

computer Smart phone

Synchronize Computing

platform Server Supercomputer Kiosk Embedded

computer

What is a Computer?

What’s a Computer?

www.target.com

A Computer is…

A digital electronics device that combines hardware and software to accept the input of data, process and store the data, and produce some useful output.

Tangible components

Electronic instructions

Digital Technology

Technology refers to tools, materials, and processes that help solve human problems.

Many of today’s technologies fall under the classification of digital electronics.

Digital Electronics Digital electronics devices store and process

bits electronically.A bit represents data using 1’s and 0’sEight bits is a byte – the standard grouping

in digital electronicsDigitization is the process of transforming

information into 1’s and 0’s

For more on digitization:http://en.wikipedia.org/wiki/Digitization http://electronics.howstuffworks.com/analog-digital.htm http://www.hardwaresecrets.com/article/317

Knowledge Worker

Today’s well-equipped knowledge worker makes use of many digital technologies.

Producing Valuable Information

Data: items stored on a digital electronics device: numbers, characters, & sounds

Information: data organized and presented in a manner that provides value to the user: documents, graphs,

music, photos

Microprocessor

Sometimes called a chip or just a processor, combines microscopic electronic components on a single integrated circuit that processes bits according to software instructions.

Digital Technology MetricsKilo, Mega, Giga, what comes next?

Key TermsDesktop computerNotebook computerNetbooksTablet PCSmart phone

Personal Computer (PC)

Examples:www.hp.com

www.apple.com www.microsoft.com/windowsxp/tabletpc

Synchronize

When you synchronize or sync two digital devices, you update the files shared between the devices so that both copies are up-to-date and identical.

Computing Platform A computer’s type,

processor, and operating system define its computing platform.

Types of General Purpose Computer Systems

Personal Computer (PC)

WorkstationPowerful, multiprocessor, special-purpose PC

Server Powerful, multiprocessor

computers that provide services to many users over a

network

Supercomputer Most powerful with fastest

processing speeds

Special-Purpose Computers A kiosk is a computer

station that provides the public with specific and useful information and services.

The processor and operating system used in the Kindle allow users to connect to the Kindle store, where books, magazines, newspapers, and blogs are available to download for a fee.

Special-Purpose Mobile Devices The “desk” has to be wherever you are. The

trend of digital electronic devices to become smaller and increasingly powerful has fully supported the move to an increasingly mobile workforce

Mobile Media Movies, television

shows, and other video clips can be downloaded from the Web or transferred from DVD to the devices and displayed on the 3.8-inch screen.

Key TermsTelecommunicationsComputer NetworksProtocolsThe InternetWorld Wide WebWireless NetworkWi-Fi

The Power of Connections

Telecommunications & Computer Networks

Telecommunications are communications that take place electronically over a distance.

A computer network is a telecommunications network that connects two or more computers for data communications.

The Internet & Web The Internet is the

world's largest public computer network, a network of networks, that provides a vast array of services.

The Web is an Internet service that provides convenient access to information through hyperlinks

1,463,632,361 Internet Users& Growing

Wireless Campus

Wireless Networking

Wireless networks use radio signals rather than cables to connect users.

Wi-fi is a popular wireless standard.

Wi-fi Access

Key TermsArtificial Intelligence (AI)AutomationVoIPDatabase

What Can Computers Do?

The Computer and Human Relationship

The creative and interpersonal endeavors that people find most engaging, computers are ill suited to perform … as of yet.

Computation Computers were

invented to compute – calculate solutions to mathematical problems.

Artificial Intelligence (AI) deals with simulating human thought and behavior in computers.

Automation Automation

involves utilizing computers to control otherwise human actions and activities.

Communication Computer systems control,

support, or provide many forms of communication.E-mailInstant messagingBlogsSocial networking

Entertainment Digital technologies not only enrich people’s

entertainment experiences, but also have revolutionized entertainment distribution.

Information

A Computer-based Information System (CBIS) uses these components to manage and distribute

information.Database is a collection of data stored on a computer and organized to meet users’ needs.

Key TermsInformation technology (IT)Systems developmentTransaction support system (TPS)Management Information System (MIS)Decision Support System (DSS)Expert System

Information Systems

Information Technology (IT)

IT can be defined as issues related to the components of a computer-based information system.

Information Systems Systems

development is the activity of creating or modifying existing information systems.

NASA scientists use management information systems to examine the data sent from Mars Rovers.

Information System Types

Expert System

Decision Support System

Management Information System (MIS)

E-Commerce

Transaction Processing System (TPS)

Key TermsInformation SecurityHackerDigital divide

Information Security and the Social Impact of Digital Technologies

Information Security

Information security refers to the protection of information systems and the information they manage against unauthorized access, use, manipulation, or destruction, and against the denial of service to authorized users.

More on Info Sec at www.cert.org www.whitehouse.gov/pcipb/ www.issa.org

Hackeran individual who subverts computer security without authorization.

The Impact of Digital Technologies on the World

Society is entering the age of pervasive computing

Pervade ~ to become diffused throughout every part of something.

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