Components of a Computer System

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Components of a Computer System
Lesson 15 System Software
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Learning Objectives

• Define software.
• Describe the difference between hardware and
  software.
• Explain what system software is.

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Computer System Pyramid
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Watch a computer booting up or logging onto a
network.

• What is happening?
• How is it happening?
• How does the computer know what to do?

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• What is software?
• How is it related to hardware?

Without software a computer system could not
function!
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Software

• The general term used to describe all the
  programs, routines or procedures that run on a
  computer.
• Makes a computer do something and are written to
  run on the hardware.
• Computer instructions or data.
• Any instructions that can be stored
  electronically are software.

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The difference between hardware and software

• Hardware
• The components of a computer which are hard to
  the touch.
• Software
• Computer instructions or data.

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Software

• What types of software have you encountered?
  What were their functions?
• What were their software names and product
  names? (They are different!)

• The difference between generic and product names
  is like the difference between a 'car' and a make
  of car e.g. 'Fiat or Dacia.

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There are 2 main types of software
Carries out some task/s for the user allowing the
user to produce something useful.
Performs tasks needed to just run the computer
system. Without system software application
software could not run.
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Systems software

• System software is a catch-all term for the
  programs that handle the running of your
  computer's hardware.

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System Software

• Students -- ICT -- IGCSE -- Computer System -- 7
  Software (System Software)
• Follow its instructions.

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Plenary

• What is software?
• Computer instructions or data.
• What is the difference between hardware and
  software?
• Hardware
• The components of a computer which are hard to
  the touch.
• Software
• Computer instructions or data.

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Plenary

• What is system software?
• System software is a catch-all term for the
  programs that handle the running of your
  computer's hardware.