This Computer Science Lesson Note was pulled from our book (Lesson Note on Computer Science for SS2 MS-WORD); Compiled to serve as reference material to help teachers draw out their lesson plan easier, saving you valuable time to focus on the core job of teaching.

The Lesson notes are based on the current NERDC curriculum (UBE compliant)

This Computer Science Lesson Note Covers The Following Topics

  1. Overview of Computer Hardware
  2. The Keyboard
  3. Computer Input Devices
  4. Storage and Output Devices
  5. Central Processing Unit
  6. Memory Unit
  7. Logic Circuits
  8. Computer Data Conversion
  9. Computer Files
  10. Methods of Accessing Files
  11. Handling Computer Files
  12. File Insecurity
  13. Word Processing
  14. System Development Cycle
  15. Program Development
  16. Algorithms and Flowcharts
  17. Program Development Life Cycle
  18. Flow chart
  19. Basic Function

 

 

Sample note

Week 1

Topic: Overview of Computer Hardware

Hardware

This refers to the physical elements or the equipment of the computer. Examples are keyboard, monitor, mouse, and processing unit. Computer hardware is the physical parts or components of a computer, such as a monitor, mouse, keyboard, computer data storage, hard disk drive (HDD), system unit (graphic cards, sound cards, memory, motherboard, and chips), and so on, all of which are physical objects that can be touched (that is, they are tangible).

 

Components of computer hardware

  1. Input/output
  2. System unit
  3. Processing unit
  4. Storage devices
  • Input devices are hardware devices that take information from the user of the computer system, convert it into electrical signals, and transmit it to the processor. The primary function of input devices is to allow humans to interact with the computer system. For instance, a mouse allows the user to control the movement of the pointer (a common element in user interface design).
  • Output devices take data from the computer system and convert it to a form that can be interpreted by humans. For instance, a monitor creates a visual electronic display to output information created by the processor to the user.
  • System Unit  Box-like case that contains the electronic circuits that cause the processing of data to occur. Part of the computer system where the computing is done.  This is where the computer programs are executed and the data is manipulated.  It consists of the Central Processing Unit (CPU), memory (Random Access Memory-RAM), and other electronics.
  • Processing devices are the components responsible for the processing of information within the computer system. This includes devices such as the CPU, memory, and motherboard.
  • Storage devices are components that allow data to be stored within a computer system. This includes devices such as hard disk drives and compact disk drives.

 

Basic input services

  1. Keyboard
  2. Mouse
  3. Scanner
  4. Touch pad

 

Output devices

  1. Speaker
  2. Monitor
  3. Printer etc

 

Other parts of the computer.

  • Arithmetic/logic unit
    • Contains the electronic circuitry necessary to perform arithmetic and logical operations on data.
  • Communications Devices
    • Enable a computer to connect to other computers. Devices that enable a computer to connect to other components; include modems and network interface cards.
  • Control Unit
    • The component in any computing system that works in coordination with the central processing unit to instruct, maintain and control the flow of information.
  • Central Processing Unit (CPU)

The component in any computing system that represents the circuitry necessary to interpret and execute program instructions, it consists of the Control Unit, arithmetic/logic unit, and the controller..  It is the corollary to the brain in organic systems.

 


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