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Showing posts from April, 2024

THE DEVICE : DEFINITION AND CLASSES OF DEVICES (JS1 NOTES)

THE DEVICE  DEFINITION AND CLASSES OF DEVICES DEFINITION OF A DEVICE Devices are instruments, equipment or machines made to perform specific functions. CLASS OF DEVICES 1. Mechanical  Devices 2. Electromechanical Devices  3. Electronic Devices 1.   Mechanical device:  This is a mechanism consisting of a device that works on mechanical principles. Examples of this include ship, cart, sewing machine, motorcycle, car, typewriter, wheel barrow, Abacus, Slide rule, Napier bone, Pascaline, Jacquard’s loom, Babbage’s analytic engine 2. Electromechanical Devices:  These are counting devices that could be operated both electrically and mechanically. Electro-mechanical devices include the following: Speeding Clock Blaise Pascal machine Gottfried Leibniz Machine 3. Electronic Devices :   These are components for controlling the flow of electrical currents for the purpose of information processing and system control. Examples include photocopier, scoreboard, calculator, radio, camera, television,

THE INTERNET 1 : MEANING AND INTERNET TERMINOLOGIES (JS2 NOTES)

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  THE INTERNET 1   MEANING AND INTERNET TERMINOLOGIES Definition of Internet i. Internet is a worldwide network of computers that share information. ii.The Internet is a global network connecting millions of computers. iii. It is also defined as a global system of interconnected computer networks that use the Internet protocol suite to link devices worldwide. Internet Terminologies 1. Cyber café:  An internet café or cyber café is a place which provides internet access to the public, usually for a fee. 2. Download:  To transfer a file from a remote computer to a local computer. In other words, it means to transfer a file from a web server to a web client. 3. Upload:  To transfer a file from a local computer to a remote computer. In other words, it means to transfer a file from a web client to a web server. 4. E-mail:  An email is mail that is electronically transmitted by your computer. 5. Email Address:  An email address is the name of an electronic postbox that can receive and send e

BASIC COMPUTER OPERATION - BOOTING (SS1 NOTES)

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  Basic Computer Operation  Booting (Description/Definition), Types of Booting, Components of Windows Desktop, Process of Shutting Down the System Definition of Booting 1. Booting is defined as the process of starting the computer. 2. Booting can also be defined as the initial set of operations that the computer performs when power is switched on. Description of the Booting Process When the computer’s power is first turned on, the CPU (Central Processing Unit) initializes itself to look for the system’s ROM BIOS (Read Only Memory Basic Input Output System) which is the first program that runs every time the computer is turned on. The BIOS performs the Power-On Self-Test (POST), which begins by checking the BIOS chip and then testing CMOS (Complementary Metal Oxide Semiconductor) RAM. If the POST does not detect a battery failure, it then continues to initialize the CPU (Central Processing Unit), checking the hardware devices to ensure they are functioning properly. Once the POST has de

COMPUTER AS A PROCESSING TOOL - IMPORTANCE OF COMPUTER AS A TOOL FOR PROCESSING DATA AND INFORMATION (JS1 NOTES)

  COMPUTER AS A PROCESSING TOOL  IMPORTANCE OF COMPUTER AS A TOOL FOR PROCESSING DATA AND INFORMATION OBJECTIVE: At the end of the lesson, the students should be able to: 1. State the importance of computer as a tool for processing data and information The following are advantages of using computers for  data  processing: Speed:   data  is processed at a very fast rate when using the  computer . Accuracy: The  computer  is very accurate when processing  data , it is not prone to errors like human beings. Reliability: Computers can work for long periods of time performing repetitive tasks without complaining and a user can be sure that a directive given to the  computer  will be carried out. Storage:  Computer  storage is far more efficient such that the quantity of  data  stored at any point can be accessed anytime it is required. Memory Capability:  Computer  systems can store a huge amount of  data  or information and they have total and instant recall of these  data . Exchange of in

HIGH LEVEL LANGUAGE_ SS3 NOTES

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      High Level Language (HLL)  Definition – Modes of Translation – Classification of High Level languages- Advantages of HLL & ML (Machine Language) Definition of Terms Program:  A computer program is a sequence of related instruction (command) that tell the computer how to accomplish a specific task. *Computer language:  Computer language is a language used by, or associated with the computer. *Syntax  Syntax are set of rules governing how the words in the language are written. *Semantics  These are the meaning associated with each word in a particular language.  Markup languages like HTML are generally not regarded as programming languages, but they are computer language. *High Level Language:  These are programming languages that allow for programs to be written in forms that are readable to human beings. A high level language is a programming language that, in comparison to low level programming languages, may be more abstract, easier to use, or more portable across pl

DATA PROCESSING - SS2 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

  S S2 - 3 RD  TERM (DATA PROCESSING) SCHEME OF WORK WEEKS 1. Graphic Package 1- Meaning, Examples, Uses, and Features 2.  Graphic Package 2- (Practical) - Design Logo, Banner, Flier, Invitation Card e.t.c 3.  Graphic Package 3- Project Presentation 4. Web Design Packages 1- Definition, Examples and Features of a website 5.  Web Design Packages 2- (Practical)- Design a website with Wix, Word press, HTML, CSS, JavaScript's e.t.c 6. Web Design Packages 3 - Project Presentation 7. Mid Term Break 8.  Basic Concept of Entrepreneurship 1- Meaning, Qualities, and Importance of  Entrepreneurship 9. Basic Concept of Entrepreneurship 2:  Marketing 1- Meaning, Methods of Marketing, Importance of Marketing and Marketing distribution Channel - Product Branding- Product Packaging- Costing and Pricing 10. Revision 11-12. Examination 13. Vacation

DATA PROCESSING - SS1 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

  SS1 - 3 RD  TERM (DATA PROCESSING) SCHEME OF WORK WEEKS 1. Word Processing 1- Meaning, Examples, Uses, Loading and Exiting Word Processor 2. Word Processing 2- Shortcuts and Practical 3. Spreadsheet Package 1 (Introduction/Definition)- Examples, Uses, Loading and Exiting Spreadsheet Package 4. Spreadsheet Package 2- (Shortcuts and Practical) 5. Spreadsheet Package 3- (Microsoft Excel): Basic Formulae and Functions 6. Spreadsheet Package 4 -  Practical & Group Work 7. Mid Term Break 8. Database Management System (DBMS) 1 - Definition, examples, and uses 9.  Database Management System (DBMS) 2 - Practical - Loading and Exiting DBMS 10. Revision 11-12. Examination 13. Vacation      

I.C.T - SS2 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

  SS2 - 3 RD  TERM (I.C.T) SCHEME OF WORK WEEKS 1. System Development Life Cycle (SDLC)- Definition, Description, Stages, and Diagram 2. Word Processor- (Practical) 3. Program Development 1- Definition, Characteristics of a good program 4. Program Development 2- Steps in Program Development- Examples of Interpreted and Compiled Programs 5. Spreadsheet Package 1 (Introduction/Definition)- Examples, Uses, Basic Arithmetic Operators and Functions 6. Spreadsheet Package 2- (Advanced with Microsoft Excel): Practical & Group Work - Seminar Presentation 7. Mid Term Break 8. Algorithm and Flowchart 1- Meaning, Functions, and Characteristics 9. Algorithm and Flowchart 2- Flowchart (Meaning, Characteristics and Flowchart Symbols) 10. Revision 11-12. Examination 13. Vacation

I.C.T - SS1 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

  SS1 - 3 RD  TERM (I.C.T) SCHEME OF WORK WEEKS 1. Basic Computer Operation- Booting (Description/Definition), Types of Booting, Components of Windows Desktop, Process of Shutting Down the System 2. Word Processing 1 - (Introduction/Definition)- Examples, Uses, Features - Edit- Save- Retrieve- Print e.t.c 3. Word Processing 2- Word Processing Shortcuts/Practical 4. Presentation Package 1- Definition, Examples, Features, and Uses of Presentation Package 5. Presentation Package 2- Presentation Package Shortcuts/Practical 6. Presentation Package 3- (Seminar Presentation & Group Work) 7. Mid Term Break 8. The Central Processing Unit (CPU) 1: Definition - Components of CPU- Control Units - ALU - Registers 9. The Central Processing Unit (CPU) 2 - Registers - Meaning, Types of Registers and Functions of Registers 10. Revision 11-12. Examination 13. Vacation

COMPUTER STUDIES-JS2 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

  JS2 - 3 RD  TERM COMPUTER STUDIES SCHEME OF WORK 1.  The Internet 1 – Meaning, Internet Terminologies -  - Differences Between Email and Website Address - How to Open an E-Mail Address 2.  The Internet 2 –Internet Browser: Meaning, Examples- Opera, Google Chrome, Phoenix, Microsoft Edge e.t.c 3.  The Internet 3 - Benefits and Abuses of the Internet -Benefits- Collaboration-Research- Communication-Real Time-Artificial Intelligence - Abuses- Hacking- Pornography- Plagiarism- Cheating 4.  The Internet 4- The Internet Environment Using Google Chrome - Search Website and Launch it- *  https://albestaacademylekki.com.ng/* *   https://unilag.edu.ng* * https://sunlitedigital.blogspot.com - Identify icons on the internet 5. The Internet 5 -  Network Groups- Meaning and types network groups: Mailing List, Discussion Group, News group, Chat Rooms e.t.c 6.  The Internet 6 -  File Sharing (Networking)- Computer Network- Meaning, Types, advantages and disadvantages of Computer Network 7.   Mid Ter

COMPUTER STUDIES - JS1 (3RD TERM SCHEME OF WORK) FOR 2023/2024 ACADEMIC SESSION

   JS1 - 3 RD  TERM COMPUTER SCHEME OF WORK WEEKS 1. Computer as a Processing Tool - Importance of Computer as a Tool for Processing Data and Information 2.  The Device- Meaning and Classes of Devices- Mechanical- Electrical – Electronic Devices 3. Practical (Mastering the Keyboard) 4. Types of Computer - Analog, Digital and Hybrid - meaning and examples 5. Uses/Applications of Computers- Schools- Hospitals-Government Offices-Banks..e.t.c 6. Advantages and Disadvantages of Computers 7. Mid Term Break 8. Screen Pointing Devices 1- Meaning/Description, Types and Examples of Screen Pointing Devices- Mouse, Trackball, Joystick, Pointing Stick, Finger Tracking, Graphics Tablet, Stylus, Light Pen e.t.c - Practical Kodu Game Lab (Continuation) 9.  Screen Pointing Devices 2-  (Continuation) - Mouse Techniques- Click-Double Click-Right Click- Left Click-Drag and Drop- Scroll 10. Revision 11-12. Examination 13. Vacation

JS3 CLASS - ONLINE CLASS TASK_COMPUTER VIRUS (COMPUTER STUDIES)

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  ASSESSMENT TASK PART A 1. What is a computer virus? a) A program designed to protect your computer b) A program designed to improve computer performance c) A program designed to harm or disrupt computer operation d) A program designed to enhance internet speed 2. Which of the following is NOT a common way computer viruses spread? a) Email attachments b) Social media posts c) USB flash drives d) Voice commands 3. What is the primary purpose of a computer virus? a) To make your computer run faster b) To steal personal information c) To damage or corrupt data d) To improve internet security 4. Which of the following is an example of a preventive measure against computer viruses? a) Regularly updating antivirus software b) Sharing passwords with friends c) Downloading files from unknown sources d) Ignoring software updates 5. What is the term for a program that appears legitimate but performs malicious activities? a) Trojan horse b) Spyware c) Firewall d) Antivirus 6. Which of the follow

BASIC Programming Language III (One Dimensional Arrays)- SS3 NOTES

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BASIC Programming Language III  (One Dimensional Arrays) Operation on Arrays/Writing BASIC Program using loops Definition of Array An array is a list of variables of the same kind. A variable is a name the computer assigns value to. Definition of One-Dimensional Array A one-dimensional array is a linear collection or arrangement of variables of the same kind. How to Create an Array in BASIC Language To create an array, the  DIM  (dimension) command is used. The DIM statement has the following syntax for a one-dimensional array: DIM  arrayName (n) . Where "n" is a whole number. For example DIM Score (5) will reserve 6 spaces, Score (0) Score (1), Score (2), Score (3), Score (4) and Score (5) in the memory to hold Numeric values. While DIM NAME$ (10) will reserve 11 memory locations to store string values, that is, NAME$(0) ... NAME$(10). The number inside the parentheses of the individual variables are called subscripts, and each variable is called a subscripted variable or el