JSS 1 - DIGITAL TECHNOLOGIES NOTES
First Term Materials
Lesson 1
Introduction to Digital Technology -
Meaning of Digital Technology: The word digital comes from the Latin word digitus, meaning finger. In technology, "digital" refers to information that is stored, processed, or communicated using numbers — specifically the numbers 0 and 1, which computers use as a kind of language called binary code... 👉 Click here for the complete note.
SOFTWARE CAREERS: Software is the set of instructions that tells a computer what to do. Every app, website, and program you use is built by software professionals. Software careers are among the most popular and well-paying in the world today. Software Developer or Programmer: A software developer writes the code that creates programs and applications. For example, the people who built Paystack — a Nigerian online payment platform — are software developers. They wrote the code that allows millions of Nigerians to pay for goods and services online safely... 👉 Click here for the complete note.
Lesson 4
Basic Computer Hardware Components I -
Basic Computer Hardware Components II – JSS 1
STORAGE UNIT: A storage unit in a computer is any hardware component that is used to store data, information, or instructions — either temporarily or permanently. Think of storage the same way you think of your school bag. Your bag holds your textbooks, notebooks, pens, and other items you need throughout the day. Similarly, a computer's storage unit holds programs, files, photos, videos, and operating system instructions that the computer needs to function... 👉 Click here for the complete note.
Lesson 6 -
Basic Software Concepts — JSS 1
How to Boot and Shut Down a Computer Safely
BOOTING A PC: The word "booting" might sound unusual, but it simply means the process of starting up a computer. When you switch on a computer, it does not just wake up like a person jumping out of bed. It goes through a series of internal checks and loading steps before it is ready for you to use. The full process is called booting or the boot process. The name actually comes from an old English saying, "pulling yourself up by your bootstraps," which means starting something from scratch. That is exactly what a computer does — it builds itself up from nothing every time you turn it on... 👉 Click here for the complete note.
Lesson 8 -
Introduction To MS Word For JSS 1
MICROSOFT WORD: Microsoft Word is a word processing application developed by Microsoft Corporation. It is part of the Microsoft Office Suite, which also includes Excel (for spreadsheets), PowerPoint (for presentations), and other useful programs. A word processor is simply a software program that allows you to type, edit, arrange, and print text on a computer. Think of it as a very powerful and neat typewriter — but with so many more features that make your work look professional and clean... 👉 Click here for the complete note.
Second Term Materials
Lesson 1 --
MS PowerPoint (Introduction)
UNDERSTANDING PRESENTATION SOFTWARE: Presentation software is a type of computer application designed to help people display information visually, usually through a series of pages called slides. Instead of reading from a plain sheet of paper, a speaker can use pictures, short text, charts, and even sound to make their message clearer and more interesting... Click here for the complete note
Lesson 2 --
3D Modelling with Paint 3D
3D MODELLING: Before we jump into Paint 3D, let us first understand what 3D modelling actually means. When you draw a house on paper, you are working in 2D — that means your drawing has only two dimensions: width and height. You can see the front of the house, but not the sides or the back. 3D modelling is the process of creating objects that have three dimensions: width, height, and depth. A 3D model looks more like a real object. You can rotate it, view it from different angles, and even walk around it (digitally). This is the technology used to design everything from movie characters to phone prototypes and architectural buildings... Click here for the complete note
DATA PROCESSING: Data simply means raw facts, figures, or details that have not yet been arranged in a meaningful way. For example, if I tell you "45, 67, 89, 34," that is just data. It does not tell you anything meaningful on its own. Now, if I tell you "45, 67, 89, and 34 are the scores of four students in a Mathematics test, and the class average is 58.75," that becomes information, because it now makes sense and can be used to take a decision. So, data processing is the activity of collecting raw data and converting it into meaningful information that can be used for something useful — like decision-making, record keeping, or planning... Click here for the complete note
Lesson 4 --
Basic Computer Communication
COMPUTER COMMUNICATION: Computer communication simply means the process by which two or more computers or digital devices exchange data, messages, or information with each other. Just like humans communicate by speaking, writing, or using body language, computers also have their own "languages" and methods for passing information between one another. This could be as simple as one computer sending a document to a printer, or as complex as thousands of computers across different continents sharing data at the same time... Click here for the complete note
Lesson 5 --
Introduction to Computer Networks
COMPUTER NETWORK: In the simplest terms, a computer network is a group of two or more computers (and other devices) linked together so they can share information, resources, and communicate with each other. Think about it this way. If one computer is like a single student sitting alone in a classroom, a network is like that same student now sitting with classmates, passing notes, sharing textbooks, and talking freely. The moment computers are connected in a way that lets them exchange data, you have created a network. A network could be as small as two laptops connected in a home, or as massive as the internet itself, which links billions of devices across the entire world... Click here for the complete note
Lesson 6 --
Basic Internet Concepts
THE INTERNET: In the simplest terms, the internet is a huge network that connects millions of computers, phones and other devices all over the world, allowing them to share information with one another. Think of it like a giant spider web that stretches across every country, connecting Lagos to London, Kano to Kuala Lumpur, and your school in Nigeria to a library in Japan. Without the internet, your phone would only be able to make calls and take pictures. But because it is connected to the internet, you can send messages, watch videos, do research for your assignment, and even attend online classes... Click here for the complete note
Lesson 7 --
Online Safety Rules
UNDERSTANDING ONLINE SAFETY: Online safety (sometimes called internet safety or cyber safety) simply means the practices and precautions people take to protect themselves while using the internet. Think of it like road safety — you don't stop using the road because there's traffic, you just learn the rules that keep you from getting hurt. The same logic applies online. The internet isn't "bad," but like any powerful tool, it can cause harm if used carelessly. A hammer can build a house or break a window — it depends on how it's handled. The internet works the same way... Click here for the complete note
Lesson 8 --
Online Privacy and Security
WHAT ONLINE PRIVACY ACTUALLY MEANS: Picture your family compound back home. There's a gate, maybe a gateman or a padlock, and your family decides who is allowed to walk in and who isn't. Random strangers don't just stroll into your sitting room uninvited — there's a boundary, and your family controls it. Online privacy works exactly the same way, except the "compound" is your personal information: your full name, your school, your address, your phone number, your photos, and your daily movements. Online privacy is your right and ability to decide who gets access to that information and who doesn't... Click here for the complete note
Third Term Materials
Lesson 1 --
Internet Communication Practices
THE MAIN TOOLS OF INTERNET COMMUNICATION: There are several tools used for communicating over the Internet, but for this lesson, we shall concentrate on three major ones that are most relevant to your level: email, instant messaging, and video conferencing. 1. EMAIL (ELECTRONIC MAIL) Email is a method of exchanging written messages over the Internet using an email address, in a way similar to how postal letters were sent, except email is instant and does not require paper, envelopes, or stamps... Click here to get the note
Lesson 2 --
Spam and Online Threats
WHAT IS SPAM? Spam is any unwanted message sent to a large number of people at the same time, usually without their permission. It can arrive through email, text messages, WhatsApp, Instagram, or pop-up windows on websites. Spam messages often advertise things nobody asked for, such as fake medicines, "get rich quick" schemes, or strange investment offers... Click here to get the complete note
Lesson 3 --
Intellectual Property
WHAT IS INTELLECTUAL PROPERTY? Intellectual property refers to creations of the mind — ideas that have been expressed in a tangible or recognizable form, such as stories, songs, inventions, designs, business names, and symbols. Unlike a phone, a bag, or a bicycle, intellectual property cannot be touched directly, but it can still be owned, protected, and misused... Click here to get the complete note