Lesson Notes By Weeks and Term - Senior Secondary 1

Functions of the Operating System

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Term: 2nd Term

Week: 10

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:      Data Processing

Topic:-       Functions of the operating system

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Discuss the functions of the operating system

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, pictures, Data Processing for senior Secondary Education by Hiit Plc, WAPB Computer Studies for Senior Secondary I by Adekunle et al, On-line Materials.

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the previous lesson on the various types of operating system and examples of each

Students pay attention

STEP 2

EXPLANATION

He reviews the need for operating system

 

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He enumerates the functions of the operating system

 

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

FUNCTIONS OF THE OPERATING SYSTEM

  1. Security – For security, modern operating systems uses a firewall. A firewall is a type of security system that monitors all computer activity and blocks it from all forms of threat.
  2. Job Accounting – The operating system keeps track of all the functions of a computer system and all the activities taking place on the system. It has an account of all the information about the memory, resources, errors, etc. Therefore, this information can be called up when required.
  3. Control over system performance – The operating system will collect consumption statistics for various resources and monitor performance indicators such as reaction time(which is the time between requesting a service and receiving a response from the system).
  4. Error detecting aids – The operating system continuously monitors the system to locate or recognize problems and protects the system from them.
  5. Coordination between other software and users – The operating system (OS) allows hardware components to be coordinated and directs and allocates assemblers, interpreters, compilers, and other software to different users of the computer system.
  6. Booting process – The operating system (OS) is in charge of booting the computer.

EVALUATION:   1. State the functions of the operating system

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively