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JSS 2 ICT Quiz - Complete Computer Systems Test JSS 2 ICT Quiz Complete Computer Systems Knowledge Test How to Use This Quiz: Select a topic from the navigation buttons Read each question carefully and try to answer it yourself Click the "Reveal Answer" button to check your understanding Use the navigation buttons to move between topics Challenge yourself with both basic and HOT (Higher Order Thinking) questions System Components Hardware Software People-ware Operating Systems Number Bases Conversion Storage Units Classification ...

Units of Storage in Computer — Student Guide (Interactive Q&A) STOR Units of Storage in Computer — Interactive Guide Bits, Bytes, KB, MB, GB... conversions, worked examples and clickable practice answers for students. Introduction A number system is a collection of symbols (digits) used to represent numbers, and a unit of storage tells us how much digital information can be held. Computers use bits and bytes to measure and store data. This guide covers the common storage units, how to convert between them, and many worked examples. Basic Units — Definitions Bit (b): Short for binary digit. The smallest unit of data; value is 0 or 1. Byte (B): 1 byte = 8 bits. Used to store a single character (letter, number, symbol). Kilobyte (KB): Usually 1 KB = 1024 bytes in computing contexts. Megabyte (MB): 1...

Computer Data Conversion (SSS 2 Notes) | CMPNOTE Blog 💻 Computer Data Conversion (SSS 2) Source: CMPNOTE Blog Introduction Computers handle vast amounts of data every second. To truly understand how a computer operates, it’s important to know how data is stored, transferred, and processed internally. This topic introduces the key components and processes that make data handling and instruction execution possible in a computer system. Definition of Terms 1. Data Conversion Data conversion is the process of transforming computer data from one format to another. It ensures that information can be processed or transferred efficiently, such as converting text into binary or moving files between systems. 2. Registers Registers are tiny, high-speed storage units located within the Central Processing Unit (CPU). They temporarily hold instructions, data, or addresses during processing. Registers operate under the control of the Control Unit (CU) and interact with...

💻 BASIC PROGRAMMING III: ONE-DIMENSIONAL ARRAY 📘 Introduction In programming, especially when using BASIC, we often need to store and process a group of related data values. Instead of creating many individual variables, we can use a structure called an array . Arrays make programs shorter, more efficient, and easier to manage. 🔹 What is an Array? An array is a collection of data items of the same type stored under one variable name. Each item in the array is called an element , and each element is identified by a unique number known as its index or subscript . Example: If we want to store the marks of 5 students, instead of using M1, M2, M3, M4, M5 , we can simply use one array variable M(5) . 🧩 Types of Arrays There are two main types of arrays: One-Dimensional Array: Stores data in a single line or list. Example: student scores, prices, names. Two-Dimensional Array: Stores data in rows and columns (like a table or spreadsheet). This lesson focuses o...

Definition of Terms: Program, Computer Language & Programming Language PL Definition of Terms: Program, Computer Language & Programming Language For SS1 Students — full coverage: generations of languages, examples, advantages & disadvantages, activities and practice. Introduction In the world of computing, every operation you see your computer perform — from simple arithmetic to designing a website — is guided by programs written in different computer languages . Understanding how these languages work is the foundation of programming and software development. This note explains what a program , computer language , and programming language are, and how they evolved from early machine code to modern high-level languages like Python and Java. Definition of a Program A program is a set of instructions written in a computer langu...

Program, Computer Language & Programming Language PL Program, Computer Language & Programming Language — Student Guide Clear definitions, types, examples, how programs work, flowcharts, pseudocode and practice questions with answers. What is a Program ? A program is a sequence of instructions written to perform a specific task on a computer. Think of it as a recipe: it lists steps (instructions) the computer follows to produce a result (like baking a cake). Example: A calculator app is a program that performs arithmetic when you press buttons. Key parts of a program Instructions/Statements: The individual steps the computer executes (e.g., read input, add numbers, display output). Variables: Storage containers in the program (names that hold values, like score or age ). Data types: Define what kind of data a...

Graphics and Introduction to CorelDRAW | SS3 Computer Studies Graphics and Introduction to CorelDRAW Senior Secondary 1 Computer Studies What is Graphics? Graphics refers to visual images or designs displayed on a screen or printed on paper. In computer studies, graphics means any picture, shape, drawing, or text you create with the help of a computer. These graphics can be used in posters, logos, magazines, charts, and animations. Types of Graphics There are two main types of computer graphics: Raster (Bitmap) and Vector graphics. Raster (Bitmap) Graphics Easy idea: Imagine a photo made from thousands of tiny colored dots called pixels. Structure: Made up of tiny dots (pixels) arranged in rows and columns. Best used for: Photographs and complex color images. Common formats: JPG, PNG, GIF, BMP. Limitation: When enlarged, the picture becomes blurry or pixelated. Vector Gr...

Units of Storage in Computers STOR Units of Storage in Computer — JSS Friendly Guide Bits, bytes and beyond — conversions and examples explained simply. Introduction Computers store and process information using electronic memory. Storage is measured in units — from the smallest unit, the bit , up to very large units like the terabyte or petabyte . Knowing these units helps you understand file sizes, memory capacity and storage devices. Basic Units — Short Definitions Bit (b): Short for binary digit . A bit can be 0 or 1 — the smallest unit of data. Byte (B): A group of 8 bits. Usually used to measure small amounts of data (letters, small files). Kilobyte (KB): Often used for small documents. In most computing, 1 KB = 1024 bytes . Megabyte (MB): Good for medium files (images, short songs). 1 MB = 102...

Number Base System — JSS2 Student Guide | CMPNote-style NB Number Base System — Complete JSS2 Guide Clear definitions, conversions, arithmetic rules, worked examples and practice — ready for your classroom or blog. Introduction A number base (or radix ) is the number of different digit symbols a number system uses. Each base defines its own digits and place values. The system you use every day is decimal (base 10) . Computers use binary (base 2) , and programmers often use hexadecimal (base 16) . Definition A number base system is a method of representing quantities using digits where the weight of each digit depends on its position (place value) and the base. The base tells you how many symbols exist before you carry to the next place. Example: In base 10 you have digits 0–9. When you add 1 to 9, you carry and get 10 because ...