COMPUTER ICT: OPERATING SYSTEM J S 2 WEEK 7

COMPUTER ICT: OPERATING SYSTEM J S 2 WEEK 7


COMPUTER ICT: OPERATING SYSTEM J S 2 WEEK 7

WEEK 7

DATE: 21st – 25th October, 2024

CLASS: JSS 2

SUBJECT: INFORMATION TECHNOLOGY

LESSON TITLE: OPERATING SYSTEM

SUBTITLE (IF ANY):

PERIOD: 1& 2

DURATION: 80 minutes

COMPUTER ICT: OPERATING SYSTEM J S 2 WEEK 7

LEARNING OBJECTIVES: By the end of the lesson, learners should be able to

  1. Define operating system
  2. Give examples of operating system

KEY VOCABULARY WORDS: executive, debug, interface

RESOURCES AND MATERIALS: computer installed with OS, interactive CD tutorial, comprehensive computer studies for basic education by A.s. Omotuyole.

BUILDING BACKGROUND/ CONNECTION TO KNOWLEDGE: students are familiar with operating system.

CONTENT:

 

OPERATING SYSTEM

An operating system is a program that acts as an interface between the software and the computer hardware.

  • It is an integrated set of specialised programs that are used to manage overall resources and operations of the computer.
  • It is specialised software that controls and monitors the execution of all other programs that reside in the computer, including application programs and other system software.

OBJECTIVES OF OPERATING SYSTEM

  • To make a computer system convenient to use in an efficient manner
  • To hide the details of the hardware resources from the users
  • To provide users a convenient interface to use the computer system
  • To act as an intermediary between the hardware and its users and making it easier for the users to access and use other resources
  • To manage the resources of a computer system
  • To keep track of who is using which resource, granting resource requests, according for resource using and mediating conflicting requests from different programs and users
  • To provide efficient and fair sharing of resources among users and programs

Characteristics of Operating System

  • Memory Management — keeps tracks of primary memory i.e. what part of it is in use by whom, what part is not in use etc. and allocates the memory when a process or program requests it.
  • Processor Management — allocates the processor(CPU) to a process and deallocates processor when it is no longer required.
  • Device Management — keeps track of all devices. This is also called I/O controller that decides which process gets the device, when, and for how much time.
  • File Management — allocates and de-allocates the resources and decides who gets the resources.
  • Security — prevents unauthorized access to programs and data by means of passwords and similar other techniques.
  • Job accounting — keeps track of time and resources used by various jobs and/or users.
  • Control over system performance — records delays between request for a service and from the system.
  • Interaction with the operators — The interaction may take place via the console of the computer in the form of instructions. Operating System acknowledges the same, does the corresponding action and informs the operation by a display screen.
  • Error-detecting aids — Production of dumps, traces, error messages and other debugging and error-detecting methods.
  • Coordination between other software and users — Coordination and assignment of compilers, interpreters, assemblers and other software to the various users of the computer systems.

NUMBER BASE SYSTEM WEEK: 9 JSS 2 Computer ICT

NUMBER BASE SYSTEM 

STRATEGIES AND ACTIVITIES:

Activity 1: learners will answer correctly questions that will be ask by the teachers on the previous topic .

Activity 2 : learners will be lead to define operating system

Activity 3: learners will give examples of operating system

Activity 4 : teacher will correct learners mistake and to the learners opinion.

ASSESSMENT (EVALUATION)/WRAP-UP:The following questions will be asked to determine the level of understanding of the topic by the learners.

  1. What do you understand by the word operating system
  2. Give 5 examples of operating system

ASSIGNMENTS: Mention 2 types of operating system

HOD/VP’S COMMENTS AND ENDORSEMENT:

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