1 / 23

Introduction to Computers

This chapter provides a comprehensive overview of computers, highlighting the significance of computer literacy and defining essential concepts such as hardware and software. It identifies key computer components, differentiates various software types, and explores different computer platforms. The text also reflects on historical predictions about computers, illustrating their evolving roles in society. Furthermore, it outlines the information processing cycle, detailing how computers accept, process, and store data while emphasizing the impact of technology across multiple industries including education, healthcare, and finance.

serge
Télécharger la présentation

Introduction to Computers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 1 Introduction to Computers

  2. Overview • Explain Computer Literacy • Define Hardware & Software • Identify Computer Components • Differentiate Various Software Types • Differentiate Computer Platforms

  3. A World of Computers • Notable Technology Prognostications • “I think there is a world market for maybe five computers.” • 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 a computer in their home.” • Ken Olson, President of DEC, 1977

  4. A World of Computers • Computer Use • Everywhere • Impact Virtually Everyone • Creation, Collection, Dissemination • Price/Power • Competition • Computer Literacy • Understanding of Computers and Their Uses • Technical Knowledge Not Required

  5. What is a Computer? • Definition • Electronic Machine • Controlled by Instructions in its Memory • Accepts Data • Raw Facts, Figures, & Symbols • Processes Data Into Information • Organized, Meaningful, and Useful • Produces & Stores Results

  6. What is a Computer? • Information Processing Cycle • Input — Accepts Data • Processing — Manipulate Data • Output — Produce Result • Storage — Store Result • Communication — Send Result to Others

  7. Hardware • Components & Equipment • Electronic • Mechanical

  8. Hardware • Input Devices • Used to Enter Data & Instructions • Keyboard • Mouse • Scanner • Digital Camera • Video Camera • Microphone

  9. Hardware • System Unit • Enclosed in a Case • Contains Electronic Components • Connected to Motherboard • Processes Data • Memory • Temporary Storage for Data & Instructions • Central Processing Unit (CPU) • Carries Out Instructions • Tells Computer What to Do

  10. Hardware • Output Devices • Conveys Information to User • Monitor • Printer • Speakers

  11. Hardware • Storage • Holds Data & Instructions for Future Use • Media • Physical Material • Device • Reads / Writes Data

  12. Hardware • Communications Devices • Send / Receive Data & Instructions • Establishes Connection Between Devices • Uses Telephone Lines, Cables, & Satellites • Modem • Converts Digital Signals to Analog & Vice Versa

  13. Hardware • Networks • Connected Computers / Devices • Share Resources • Hardware • Software • Data & Information • Save Time & Money • Internet • Millions of Computers Linked Worldwide

  14. Software • AKA Program • Series of Instructions • Tells Computer What to Do

  15. Software • Systems Software • Controls Operations & Hardware • Operating System • Utility Programs • Application Software • Performs Specific Tasks for Users • Word Processing • Spreadsheet • Database

  16. Platforms • Personal Computers • Desktops • PCs & Compatibles • Windows OS • Apple • Macintosh OS

  17. Platforms • Mobile Computers • Portable • Notebook • AKA Laptop • Tablet • Stylus, Annotation • Netbook • Smaller, WI-FI, No DVD

  18. Platforms • Mobile Devices • Smart Phone • Horizontal • Media Player • Digital Camera • Handheld • Vertical

  19. Platforms • Game Console • Video Games • Embedded • Component in Larger Product • Phone, Thermostat, Security, Airbag

  20. Platforms • Larger Systems • Servers • Networks • Mainframe • Supercomputer

  21. Platforms • Comparison

  22. Industry Applications • Education • Distance Learning • Finance • Online Banking & Investing, Tax Prep • Government • 911 Dispatching, Squad Notebooks • Healthcare • Electronic Patient Records, PPID

  23. Industry Applications • Science • Collect, Analyze, & Model Data • Publishing • E-books, PDF Manuals, MP3s • Travel • Navigation Systems, E-tickets • Manufacturing • Production, Inventory, Quality Control

More Related