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Introduction to Computers

Introduction to Computers. Objectives Overview. A World of Computers. Computers are everywhere. What Is a Computer?. A computer is an electronic device, operating under the control of instructions stored in its own memory. Information Processing Cycle. The Components of a Computer.

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Introduction to Computers

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  1. Introduction to Computers

  2. Objectives Overview

  3. A World of Computers • Computers are everywhere

  4. What Is a Computer? • A computer is an electronic device, operating under the control of instructions stored in its own memory Information Processing Cycle

  5. The Components of a Computer • A computer contains many electric, electronic, and mechanical components known as hardware

  6. The Components of a Computer

  7. Advantages and Disadvantages of Using Computers Advantages of Using Computers Disadvantages of Using Computers

  8. Advantages and Disadvantages of Using Computers • Green computinginvolves reducing the electricity consumed and environmental waste generated when using a computer • Strategies include: • Recycling • Regulating manufacturing processes • Extending the life of computers • Immediately donating or properly disposing of replaced computers

  9. Computer Software • Software, also called a program, tells the computer what tasks to perform and how to perform them

  10. Computer Software • Installing is the process of setting up software to work with the computer, printer, and other hardware

  11. Computer Software • A programmer develops software or writes the instructions that direct the computer to process data into information

  12. Categories of Computers

  13. Personal Computers • A personal computercan perform all of its input, processing, output, and storage activities by itself • Two popular architectures are the PC and the Apple • Desktop computer

  14. Mobile Computers and Mobile Devices

  15. Mobile Computers and Mobile Devices

  16. Mobile Computers and Mobile Devices

  17. Game Consoles • A game consoleis a mobile computing device designed for single-player or multiplayer video games

  18. Servers • A server controls access to the hardware, software, and other resources on a network • Provides a centralized storage area for programs, data, and information

  19. Mainframes • A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously

  20. Page 19 Figure 1-24 Supercomputers • A supercomputer is the fastest, most powerful computer • Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second

  21. Embedded Computers • An embedded computeris a special-purpose computer that functions as a component in a larger product

  22. Embedded Computers

  23. Examples of Computer Usage

  24. Examples of Computer Usage

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