What is Computer Software?

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(No Transcript)
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What is Computer Software?
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Hardware vs Software
Got to have both to get the job done!
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How does Software Work?

• Computer Algorithms
• Step by step directions telling computer what to
  do
• Software development
• First programmer Grace Hooper created FLOW
  MATIC (later known as COBOL)
• Programming language that was close to English

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Applications Software

• Programs designed to make users more productive
• Assist with personal tasks
• Word
• PowerPoint
• Media Player

• Variety of uses
• Business
• Graphics and Multimedia
• Home/Personal/
• Educational
• Communications

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Systems Software

• Interface between the user, the application
  software, and the computers hardware
• Examples
• Operating systems
• Utilities (diagnostics, servers)
• Language translators

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Operating Systems

• Helps user communicate with computer
• Uses a desktop to provide on-screen work area
  (graphical user interface)
• Windows
• Linux
• Mac-OS
• DOS
• Networking Operating System
• Two or more computers to be connected

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Utility Software

• Helps perform housekeeping chores
• Tasks include
• Antivirus programs
• Copy file from hard drive to another location
• Convert graphics file to be used in another
  program
• Backup copy of hard drive (image, ghost)
• CD/DVD Burning

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Web Based Software/Applications

• Some accessed strictly online
• Some are Client-Based
• Parts are stored on the device but processed over
  internet
• iPhone / Android Apps
• Most Common Web-Based

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Do you know what this is?

• lt!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
  Transitional//EN" "http//www.w3.org/TR/xhtml1/DTD
  /xhtml1-transitional.dtd"gtlthtml lang"en"
  xmllang"en" xmlns"http//www.w3.org/1999/xhtml"
  gtltheadgtltmeta content"text/html charsetutf-8"
  http-equiv"content-type" /gtltscript
  type"text/javascript"gt//lt!CDATAsi_STnew Date
• //gtlt/scriptgtltscript type"text/javascript"gt//lt!
  CDATA

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Language Translators

• Convert English code, to computer instructions
• Helps computer process data

I dont understand! I need a translator.
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User Interfaces

• What you see, touch, click
• Part we interact with when using the computer
• User friendly
• Command-line interface such as DOS
• (not used frequently)
• Graphical interfaces such as Windows

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What OLD Apples looked like
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Command Line

• Early computers used only this
• Have to memorize codes
• Not very user friendly
• Not colorful usually written in black and white
• No pictures

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DOS

• Command line operating system
• Memorize commands

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Graphical User Interfaces

• Came about with menus
• Graphical user interface (GUI)
• Apples development of Macintosh Finder
• Pictures (icons) represent software
• Colorful
• Reason for explosion of computer use (after DOS
  scared people)

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Vista Operating System
Windows 95, 98, XP, Vista, 7, 8
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Mac Operating System - Leopard
Kodiak, Cheetah, Puma, Jaguar, Panther, Tiger,
Leopard, Snow Leopard, Lion, Mountain Lion
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Assignment

• Computer Specs that Matter link on calendar