Introduction
If you are preparing for exams and want to improve your understanding of computer basics, these Class 9 IT MCQ with Solutions questions will help you practice important concepts easily. This post covers key topics such as computer systems, CPU (CU, ALU, Registers), memory types (RAM, ROM, Cache), storage devices, and input/output devices. Each question in this Class 9 IT MCQ with Solution set is designed to help students quickly revise concepts and test their knowledge in a simple and exam-oriented way.
Part 1 — How a Computer Works
This part covers what a computer does, its key features, and the parts that make it run — including the CPU and its units.
Part 2 — Types of Memory
This part explains RAM, ROM, cache, and secondary storage — what they do, how they differ, and why each one matters.
Part 3 — Storage Devices
This part looks at hard disks, CDs, DVDs, pen drives, and other storage tools — how they save data and how much they hold.
Part 4 — Input and Output Devices
This part covers the tools used to put data into a system and get results out — keyboards, mice, monitors, printers, and more.