THE COMPUTER SYSTEM J S 2 LESSON -NOTE WEEK 3 | I CT SCHEME
THE COMPUTER SYSTEM J S 2 LESSON -NOTE WEEK 3
LESSON PLAN
WEEK: 3
DATE: 23rd-27th September, 2024
CLASS: JSS 2
SUBJECT: Information Technology
LESSON TITLE: The Computer System
SUBTITLE (IF ANY): Hardware Components
PERIOD: 1&2
DURATION: 80 MINUTES
LEARNING OBJECTIVES:
By the end of this lesson, students should be able to :
- Define System and Computer System
- Define hardware components
- State the division of hardware components
- State and identify input and output devices
THE COMPUTER SYSTEM J S 2 LESSON -NOTE WEEK 3
KEY VOCABULARY WORDS:
RESOURCES AND MATERIALS:
BUILDING BACKGROUND/ CONNECTION TO KNOWLEDGE: The students have come in contact the computer system and for the purpose of this lesson, some hardware components are presented before them. THE COMPUTER SYSTEM J S 2 LESSON -NOTE WEEK 3
CONTENT:
THE COMPUTER SYSTEM
A system
A system is a collection of elements or components that are organized for a common purpose.
THE COMPUTER SYSTEM J S 2 LESSON -NOTE WEEK 3 | I CT SCHEME
A computer system
A computer system is a combination of hardware, software, and peripheral devices working together to perform tasks, process data, and deliver output based on user inputs or programmed instructions. It consists of the following components:
- Hardware: The physical components of the system, such as the Central Processing Unit (CPU), memory (RAM), storage devices (hard drives, SSDs), input devices (keyboard, mouse), and output devices (monitor, printer).
- Software: The programs and applications that instruct the hardware to perform specific tasks, including system software (like the operating system) and application software (such as word processors or web browsers).
- Users: Individuals or systems that interact with the computer by inputting data or commands.
- Data: Information processed or stored by the system to produce meaningful output.
- Processes: The operations performed by the computer, which include input, processing, output, and storage of information.
A computer system follows the input-process-output model, where data is received, processed, and then transformed into useful output.
Division of Hardware Components
- Input Devices: These are hardware components used to enter data and instructions into the computer. Examples include:
- Keyboard
- Mouse
- Scanner
- Microphone
- Webcam
- Barcode Reader
- Processing Devices: These are the components responsible for executing instructions and processing data. The primary processing device is the Central Processing Unit (CPU), which consists of:
- Control Unit (CU): Directs the flow of data and instructions.
- Arithmetic Logic Unit (ALU): Performs mathematical calculations and logical operations.
- Registers: Temporary storage for data during processing.
- Storage Devices: These components store data, either temporarily or permanently. They can be categorized into:
- Primary Storage (Memory): Includes RAM (Random Access Memory) and ROM (Read-Only Memory), which store data that is currently being processed.
- Secondary Storage: Hard drives, SSDs, USB drives, and optical discs used for long-term data storage.
- Output Devices: These are hardware components that present processed data to the user. Examples include:
- Monitor (Displays visual output)
- Printer (Produces hard copies of data)
- Speakers (Generate audio output)
- Peripheral Devices: External devices connected to the computer, such as external drives, network adapters, and external printers.
Input Devices
Input devices allow users to interact with and input data into the computer system. Some examples include:
- Keyboard: Used to type text and issue commands.
- Mouse: A pointing device used to select and interact with items on the screen.
- Scanner: Converts physical documents or images into digital format.
- Microphone: Captures audio input for recording or communication.
- Webcam: Captures live video for video conferencing or recording.
- Joystick: Used for gaming and controlling on-screen movements.
Output Devices
Output devices display or provide the results of data processed by the computer system. Examples include:
- Monitor: Displays visual output, such as text, images, and videos.
- Printer: Produces physical copies (printouts) of documents or images.
- Inkjet Printer: Produces high-quality prints by spraying ink.
- Laser Printer: Uses toner to create high-speed, high-quality prints.
- Speakers: Emit audio signals and sounds.
- Projector: Projects visual output onto a larger screen or surface.
- Headphones: Personal audio output device for listening to sound.
STRATEGIES AND ACTIVITIES:
Activity 1: Teacher revises the previous lesson with the learners.
Activity 2: He introduce the new topic to the learners
Activity 3: He explains the key vocabulary words.
Activity 4: Learners will define system
Activity 5: Learners will a computer system
Activity 5: Learners will list the components of computer system
Activity 6: Teacher explains in details to bust the learners’ idea about the topic.
ASSESSMENT (EVALUATION): to determine the level of understanding of the topic by the learners, the teacher ask the following questions
- What is a system?
- Explain the hardware component of computer system.
WRAP-UP (CONCLUSION): Learners were able to respond to question asked the teacher
ASSIGNMENTS: Explain with examples the software components of computer system.
HOD/VP’S COMMENTS AND ENDORSEMENT:
