In this chapter students will learn about:
  • Hardware
  • Software
  • The main components of a computer system
  • Operating systems
  • Graphical user interface (GUI)
  • Command line interface (CUI)
  • Different types of computer systems.
Computer systems are made up of:

  • Hardware- The physical parts ( plastic, metal ,etc) of the computer. This includes items inside the computer, such as the graphics card, processor, memory and hard disk, as well as devices connected to the computer, like the monitor,keyboard, mouse and printer.
  • Software- This consists of the instructions, code and programs that enable the computer to perform specific tasks.
  • Data- This is what computers process. Data can be input to the system through devices like the keyboard, or collected automatically by sensors. It can be output devices such as a monitor or printer.
  • Networks- These connect computers together so that resources such as printers can be shared and data can be communicated.
Computers are placed into groups according to their size, processing power, design and cost. These groups are : supercomputers; mainframe computers; microcomputers; personal digital assistants (PDAs) and embedded computers.


1.1 Hardware & software What is Hardware? What is Software? Computer hope IT Essentials Kaboose Learning resources
http://www.hardandsoftware.net/http://www.hardandsoftware.com/ http://www.stereo3d.com/quick.htm http://www.webopedia.com/TERM/S/software.html http://www.tomshardware.com/ www.computerhope.com/issues/ch000039.htm www.usability.gov/pdfs/chapter4.pdf
www.cemca.org/EMHandbook/Section3.pdf www.globalcomputer.com www.gcse.com/ict/**hardware**.htm

1.2 Main components of computer systems **http://www.hxen.com/yingyuwenzhang/computer-network/personal-tech/2008-06-13/40766.html** **www.igcseict.info/theory/1/** **http://ezinearticles.com/?What-Are-the-Main-Components-of-a-Computer-System?&id=2074420** **www.grassrootsdesign.com/intro/hardware.php** **www.tekxam.com/StudyGuide/.../Computer_Components.html** http://www.cleverace.com/main_computer_components.htm http://www.computerknowledgeforyou.com/computercomponents/computer_components.html http://windows.microsoft.com/en-US/windows-vista/Parts-of-a-compute http://oopweb.com/Java/Documents/JavaNotes/Volume/chap01/ch01_3.html http://chortle.ccsu.edu/assemblytutorial/Chapter-04/ass04_2.html www.comptechdoc.org/hardware/pc/begin/hw**computer**.html www.infocheese.com/**componentsofcomputersystem**.htmlwww.grassrootsdesign.com/intro/hardware.php www.tekxam.com/StudyGuide/.../**Computer**_**Components**.html www.igcseict.info/theory/1/
1.3 Operating systems **http://msdn.microsoft.com/zh-cn/windows/hardware/gg487512** **http://msdn.microsoft.com/zh-cn/library/ff684168** **http://technet.microsoft.com/zh-cn/library/ff399234(en-us).aspx** **http://support.visioneer.com/products/tools/OS/** **http://en.wikipedia.org/wiki/Operating_system** http://en.wikipedia.org/wiki/Operating_system http://www.computerhope.com/os.htm http://www.webopedia.com/TERM/O/operating_system.html http://www.howstuffworks.com/operating-system.htm http://www.operatingsystems.com/ COMPUTER HOPE WISE GEEK SEARCH CIO CISCO SERACH WIN DEVELOPMENT

1.4 Types of computers Computer basics guide Maps of world Teach me computers Hubpages Computer specialist http://oderog.hubpages.com/hub/computertype http://www.cs.cmu.edu/~fgandon/lecture/uk1999/computers_types/ http://en.wikipedia.org/wiki/Classes_of_computers http://teachmecomputers.tripod.com/lesson_1.htm http://www.mapsofworld.com/referrals/computers/types-of-computers/ http://oderog.hubpages.com/hub/computertypes http://www.cs.cmu.edu/~fgandon/lecture/uk1999/computers_types/ http://en.wikipedia.org/wiki/Classes_of_computers http://teachmecomputers.tripod.com/lesson_1.htm http://www.mapsofworld.com/referrals/computers/types-of-computers/


Single board computers


https://www.raspberrypi.org
https://www.arduino.cc
http://www.banana-pi.com/eindex.asp
http://www.udoo.org/