* 07/16/96 CMPE 101 Introduction to Information Technologies Chapter 1: Computers and You Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

* Objectives 07/16/96 Define the word computer and name the four basic operations that a computer performs Describe the two main components of a computer system: Hardware Software Provide examples of hardware devices that handle input, processing, output, and storage tasks. Give an example of the information processing cycle in action. Discuss the two major categories and the various types of computers. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Objectives Explain the advantages and disadvantages of computer use. * Objectives 07/16/96 Explain the advantages and disadvantages of computer use. Recognize the ethical and societal impacts of computer usage. Discuss how computers affect employment. List ways to be a responsible computer user. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers: Yesterday, Today, and Tomorrow Integral to our daily lives Millions use computers daily. Applications Word processors Internet Online banking Online classes GPS systems ATM machines Mobile phones Weather prediction Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computers: Yesterday, Today, and Tomorrow Computers (con’t.) Used at: Home Work School Embedded into: Cars Phones Cameras Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computers: Yesterday, Today, and Tomorrow Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computers: Yesterday, Today, and Tomorrow Before computers There were No telephone answering machines No handheld calculators No fax machines No personal computers People Wrote letters by hand or with a typewriter Kept track of data and numbers in ledgers Communicated in person or over the telephone Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Fundamentals * Computer Fundamentals 07/16/96 Computer—device that performs the information-processing cycle Computer system—group of associated components that work together Hardware Software Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

In-Class Activity Form groups of four students Create a list of “things” that are related to computers Hardware, Software, Devices that use computers, networking, Internet services, etc. Make your list as long as possible Share your list with others and Add the items that are absent in your list Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Fundamentals Hardware Physical parts of the computer Includes such components as the system unit, monitor, keyboard, and printer Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Fundamentals Software Computer system’s hardware needs programs to function A program is a set of instructions that tells the hardware how to perform an operation on the input data Software is the collection of programs, and the associated documentation, that directs the operation of the computer to complete a desired end result. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Fundamentals * Computer Fundamentals 07/16/96 Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computer Fundamentals * Computer Fundamentals 07/16/96 Communications High-speed movement of data or information Communication device Hardware component that moves data in and out of a computer Network Connects two or more computers to share input/output devices and other resources through the use of a network interface card Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

In-Class Activity Classify the items in your list Input Units Processing Units Output Units Storage Units Software Communication Device Internet Applications Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Components Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Components Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computer Components Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Types of Computers Computers can be separated into two main types: * Types of Computers 07/16/96 Computers can be separated into two main types: Individual—designed for one user at a time Organizational—designed to be used by many people at the same time Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Individual: Desktop Computers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Individual: Portable Computers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Organization - Server Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Organization - Network Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Organization - Mainframe Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Organization - Mainframe Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Organization - Supercomputers * Organization - Supercomputers 07/16/96 Using IBM iDataPlex servers, 300TB of RAM, and an InfiniBand interconnect, SuperMUC's 147,456 cores achieved a speed of 2.9 petaflops. Energy costs are cut by directly cooling chips and memory with water at unusually high temperatures of 104 degrees fahrenheit. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Organization - Supercomputers * Organization - Supercomputers 07/16/96 This Blue Gene/Q system uses 786,432 cores to hit 8.6 petaflops. When it hits full production in 2014 Mira will offer more than 5 billion computing hours per year to scientists Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Organization - Supercomputers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computers, Society, and You * Computers, Society, and You 07/16/96 Advantages and Disadvantages of Computer Use Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

Computers, Society, and You * Computers, Society, and You 07/16/96 Software programs Contain flaws Errors cause programs to run slowly or miscalculate. Bugs are almost impossible to eliminate completely. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You * Computers, Society, and You 07/16/96 Computer ethics Moral dilemmas relating to computer usage Digital piracy Unauthorized reproduction and distribution of computer-based media Unethical behavior Sending viruses, stealing credit card information, computer stalking, and installing illegitimate copies of software on computers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You * Computers, Society, and You 07/16/96 Computers provide those who are disabled and disadvantaged with added support and opportunities E-learning Learning without requiring students to be at a specific location at a specific time Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You * Computers, Society, and You 07/16/96 Automation Replacement of people by machines and computers Computer technology Aided globalization Caused structural unemployment — the obsolescence of certain jobs Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You * Computers, Society, and You 07/16/96 Be a responsible computer user: Understand how your computer use affects others. Obey laws and conform to requests regarding use of cell phones. Be aware of e-waste and the proper disposal of outdated computer hardware. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Computers, Society, and You * Computers, Society, and You 07/16/96 Advances in computer technology Upgrade software to obtain the latest software features. Stay informed to help avoid computer viruses. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

* Summary 07/16/96 Define the word computer and name the four basic operations that a computer performs. Describe the two main components of a computer system: hardware and software. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

* Summary 07/16/96 Provide examples of hardware devices that handle input, processing, output, and storage tasks. Give an example of the information processing cycle in action. Discuss the two major categories and the various types of computers. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *

Summary Explain the advantages and disadvantages of computer use. * Summary 07/16/96 Explain the advantages and disadvantages of computer use. Recognize the ethical and societal impacts of computer usage. Discuss how computers affect employment. List ways to be a responsible computer user. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall *