© 2004 Ken Baldauf, All rights reserved. Why Study Computers? Using Computers to Achieve Goals...

© 2004 Ken Baldauf, All rights reserved.

Why Study Computers?

Using Computers to Achieve Goals

Careers and Computers Computers and the Internet Computer Systems Computer Systems Development,

Security, and ControlPlease turn your cell phone off.


Using Computers to Achieve Goals

Some Fundamental Concepts


A Computer

An electronic device used to perform calculations and other digital functions at high speed.

Computer activities Input Processing Storage Output

How do these concepts relate to an MP3 player?


Producing Valuable Information

Data: raw facts Information: data organized and presented

in a manner that provides value to the user. Preferably accurate, complete, economical,

flexible, reliable, relevant, simple, timely, and verifiable

How do these concepts relate to


Advantages of Using Computer Systems

Increases in Productivity Improved Quality Competitive Advantage

How do these concepts relate to


Review Questions


Careers and Computers

A Survey of Computer Use in Careers

~Please read on your own


Computer Components

Hardware Software Types of Computers


Hardware

Hardware includes all of the tangible parts of a computer system used to input, process, store, and output data and information.


Software

Software consists of programs and instructions given to the computer to execute and run.

Two types: Application software serve people’s needs System software serves the computer systems

needs


SINGLE USER SYSTEMS

Types of General Purpose Computer Systems

Personal Computers (PCs)Small, inexpensive, often called microcomputers.

WorkstationsHigh-end special-purpose microcomputers

Midrange Computers Size of a three drawer file cabinet and accommodates several users at one time.

Mainframe Computers Large and powerful, shared by hundreds concurrently.

Supercomputers Most powerful with fastest processing speeds.

MULTI-USER SYSTEMS(SERVERS)


Special-Purpose Computer systems

Computers designed for one task.

Kiosk

Game consoles

Digital Music Players

Can you think of any others?


The Processor

The processor carries out program instructions to accomplish a goal.

Increasing processor speeds are expanding the boundaries of our capabilities both professionally and personally.

Production Sequencing Facility at DOE's Joint Genome Institute in Walnut Creek, CA

Slugfest Video Game for XBox


Storage Storage devices hold data permanently. Memory, or RAM, is a form of storage that holds

data temporarily. Advances in storage technologies have brought

advanced multimedia applications into the home, and sparked the production of numerous portable digital devices.

Like a suped-up Tivo,this 1 TB

digital video recorder from

Sony can store 1,000 hours of

television programming.

The iPod from Apple stores 10,000 songs.


Input and Output Devices

While the keyboard and mouse remain the most common input device, new methods of inputting data, such as voice commands and stylus are making human computer interaction more natural.

Interacting with your computer using a stylus will become commonplace as tablet PCs become increasingly popular.


Review Questions


Computer Systems

Database Systems Telecommunications and Networks E-commerce & Transaction Processing Information, Decision Support Systems Artificial Intelligence


Information System Components


Database Systems

Database: an organized collection of facts and information.

Database of known Web sites associated

with key words

http://news.bbc.co.uk/1/hi/technology/3497395.stm


Transaction Processing Systems (TPS)

Transaction: an exchange of goods

TPS: an information system designed to support and record completed transactions


E-commerce

E-commerce involves conducting business or other transactions online, over the Internet or other telecommunications system. Business-to-business (B2B) Business-to-consumer (B2C) Consumer-to-consumer (C2C)


Management Information Systems (MIS)

MIS: an information system designed to provide routine information to managers and decision makers


Decision Support Systems (DSS)

DSS: An information system designed to support problem-specific decision making.


Artificial Intelligence and More

Artificial Intelligence: computer systems take on characteristics of human intelligence.

Expert System: an information system that can make suggestions and reach conclusions in much the same way as a human expert.

http://www.artificial-life.com


Review Questions


Computer Systems Development, Security, and Controls

Please read on your own.


Questions?

Don’t forget to turn your phone back on!!

© 2004 Ken Baldauf, All rights reserved. Why Study Computers? Using Computers to Achieve Goals...

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