Computing Fundamentals Module Lesson 1 Introducing Computers

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Computing Fundamentals ModuleLesson 1
Introducing Computers

• Computer Literacy BASICS

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Objectives

• Define a computer and identify how it is used.
• Compare and classify types of computers.
• List the parts of a computer system.
• Explain how computers are integrated into larger
  systems through networks.
• Identify computer system components.
• Distinguish between software and hardware.
• Describe the difference between applications
  software and systems software.
• Define the user interface and graphical user
  interface.

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Computer Definition and Capability
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How Computers are Used
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How Computers Are Used
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Types of Computers

• Computers are classified by
• Size (physical and logical)
• Speed
• Application

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Super Computer

• Largest
• Fastest
• Cost millions
• Used by Government and Large Corporations

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Mainframe Computer

• Less powerful than supercomputer
• Cost thousands, not millions
• Offer centralized
• Storage
• Processing
• Management

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Minicomputer

• Larger than personal computer
• Runs Unix, Linux, AIX
• Often used by programmers and scientist

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Types of Personal Computers
Macintosh desktop
PC desktop
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Types of Personal Computers
PDA
Notebook
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Notebook

• Called laptop
• Lightweight
• Portable
• As powerful as desktop PC

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PDA

• Personal Digital Assistant
• Smaller than notebook
• No keyboard
• Usually a touch-screen
• Operating System
• Windows CE
• Palm OS

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Smart Phone

• Cell phone on steroids
• Same as PDA
• Internet access

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Netbook Computer

• Light, inexpensive
• Very small screen
• NO CD/DVD Drive
• Not full-sized keyboard

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Tablet PC

• Same as laptop but with these features
• integrated pen support
• touch-screen support
• handwriting recognition
• Rotating LCD screen

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Computer Systems
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Data Communications Components
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A Typical Network Layout
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Types of Networks

• Intranets within an organization
• Extranets within and outside organizations
• The Internet a network of networks

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Summary

• A computer is an electronic device that receives
  data, processes data, and stores data to produce
  a result.
• Computers can be found in almost every aspect of
  our lives.
• Computers are classified by size, speed, and
  application.
• There are different types of computers including
  supercomputers, mainframe computers,
  minicomputers, and microcomputers.