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Introduction to Computers

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Chapter 1. Introduction to Computers. Overview. Explain Computer Literacy Define Hardware & Software Identify Computer Components Differentiate Various Software Types Differentiate Computer Platforms. A World of Computers. Notable Technology Prognostications

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overview
Overview
  • Explain Computer Literacy
  • Define Hardware & Software
  • Identify Computer Components
  • Differentiate Various Software Types
  • Differentiate Computer Platforms
a world of computers
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
a world of computers1
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
what is a computer
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
what is a computer1
What is a Computer?
  • Information Processing Cycle
    • Input — Accepts Data
    • Processing — Manipulate Data
    • Output — Produce Result
    • Storage — Store Result
    • Communication — Send Result to Others
hardware
Hardware
  • Components & Equipment
    • Electronic
    • Mechanical
hardware1
Hardware
  • Input Devices
    • Used to Enter Data & Instructions
      • Keyboard
      • Mouse
      • Scanner
      • Digital Camera
      • Video Camera
      • Microphone
hardware2
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
hardware3
Hardware
  • Output Devices
    • Conveys Information to User
      • Monitor
      • Printer
      • Speakers
hardware4
Hardware
  • Storage
    • Holds Data & Instructions for Future Use
      • Media
        • Physical Material
      • Device
        • Reads / Writes Data
hardware5
Hardware
  • Communications Devices
    • Send / Receive Data & Instructions
    • Establishes Connection Between Devices
      • Uses Telephone Lines, Cables, & Satellites
        • Modem
          • Converts Digital Signals to Analog & Vice Versa
hardware6
Hardware
  • Networks
    • Connected Computers / Devices
      • Share Resources
        • Hardware
        • Software
        • Data & Information
      • Save Time & Money
    • Internet
      • Millions of Computers Linked Worldwide
software
Software
  • AKA Program
  • Series of Instructions
  • Tells Computer What to Do
software1
Software
  • Systems Software
    • Controls Operations & Hardware
      • Operating System
      • Utility Programs
  • Application Software
    • Performs Specific Tasks for Users
      • Word Processing
      • Spreadsheet
      • Database
platforms
Platforms
  • Personal Computers
    • Desktops
      • PCs & Compatibles
        • Windows OS
      • Apple
        • Macintosh OS
platforms1
Platforms
  • Mobile Computers
    • Portable
      • Notebook
        • AKA Laptop
      • Tablet
        • Stylus, Annotation
      • Netbook
        • Smaller, WI-FI, No DVD
platforms2
Platforms
  • Mobile Devices
    • Smart Phone
      • Horizontal
    • Media Player
    • Digital Camera
    • Handheld
      • Vertical
platforms3
Platforms
  • Game Console
    • Video Games
  • Embedded
    • Component in Larger Product
      • Phone, Thermostat, Security, Airbag
platforms4
Platforms
  • Larger Systems
    • Servers
      • Networks
    • Mainframe
    • Supercomputer
platforms5
Platforms
  • Comparison
industry applications
Industry Applications
  • Education
    • Distance Learning
  • Finance
    • Online Banking & Investing, Tax Prep
  • Government
    • 911 Dispatching, Squad Notebooks
  • Healthcare
    • Electronic Patient Records, PPID
industry applications1
Industry Applications
  • Science
    • Collect, Analyze, & Model Data
  • Publishing
    • E-books, PDF Manuals, MP3s
  • Travel
    • Navigation Systems, E-tickets
  • Manufacturing
    • Production, Inventory, Quality Control
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