Chapter Exam

Chapter 1: Computer System and Components — Online MCQ Test

Q: Which of the following is an example of hardware?

Answer: B. Keyboard — Hardware refers to the physical, tangible components of a computer. A keyboard is a physical device, while others are software applications.

Q: RAM stands for _________.

Answer: B. Random Access Memory — RAM stands for Random Access Memory, which is a type of volatile primary memory that allows the computer to access any stored data in any order.

Q: A scanner is classified as which type of device?

Answer: C. Input device — A scanner is an input device that converts physical documents or images into digital format that can be processed by the computer.

Q: A computer system cannot function properly without a _________. Which component is being described?

Answer: C. CPU — The CPU is the essential processing unit of a computer. Without it, no computation or instruction execution is possible. Other devices are optional peripherals.

INFORMATION TECHNOLOGY · Grade 6 · CBSE(NCERT)

Practice Chapter 1: Computer System and Components with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 6 INFORMATION TECHNOLOGY. This chapter covers: Computer history Hardware Software Input devices Output devices CPU Memory RAM ROM Storage devices Peripheral devices. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 1: Computer System and Components — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 6 INFORMATION TECHNOLOGY — Chapter 1: Computer System and Components, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is a computer?

A. An electronic device that processes data and produces information ✓
B. A machine that only stores files
C. A device used only for playing games
D. An equipment that cannot be programmed

Answer: A. An electronic device that processes data and produces information
A computer is defined as an electronic device that accepts data (input), processes it, and produces meaningful information (output) according to instructions.

Which of the following is an example of hardware?

A. Microsoft Word
B. Keyboard ✓
C. Windows 10
D. Google Chrome

Answer: B. Keyboard
Hardware refers to the physical, tangible components of a computer. A keyboard is a physical device, while others are software applications.

RAM stands for _________.

A. Read Access Memory
B. Random Access Memory ✓
C. Rapid Automatic Memory
D. Read And Modify Memory

Answer: B. Random Access Memory
RAM stands for Random Access Memory, which is a type of volatile primary memory that allows the computer to access any stored data in any order.

What is ROM?

A. A type of volatile memory that loses data when powered off
B. A type of non-volatile memory that stores permanent instructions ✓
C. A storage device for files and documents
D. A processing unit of the computer

Answer: B. A type of non-volatile memory that stores permanent instructions
ROM (Read-Only Memory) is a non-volatile memory that contains firmware instructions. It retains data even when the power is switched off.

A scanner is classified as which type of device?

A. Output device
B. Processing device
C. Input device ✓
D. Storage device

Answer: C. Input device
A scanner is an input device that converts physical documents or images into digital format that can be processed by the computer.

Why is RAM considered volatile memory?

A. Because it is very expensive
B. Because it loses all stored data when the power is turned off ✓
C. Because it can only store limited amounts of data
D. Because it works very slowly

Answer: B. Because it loses all stored data when the power is turned off
RAM is volatile memory because it requires constant power supply to retain data. When power is switched off, all data in RAM is lost permanently.

Why is it necessary to have both RAM and permanent storage (like a hard disk) in a computer?

A. For redundancy and backup purposes only
B. RAM provides fast temporary storage for active tasks while hard disk provides permanent storage for files ✓
C. Hard disk is unnecessary; RAM alone is sufficient
D. Both serve identical functions

Answer: B. RAM provides fast temporary storage for active tasks while hard disk provides permanent storage for files
RAM enables fast processing of active programs and data, while a hard disk stores files permanently. Together, they provide both speed and data persistence.

A computer system cannot function properly without a _________. Which component is being described?

A. Monitor
B. Printer
C. CPU ✓
D. Speaker

Answer: C. CPU
The CPU is the essential processing unit of a computer. Without it, no computation or instruction execution is possible. Other devices are optional peripherals.

Considering a computer's component hierarchy, if a motherboard fails, which critical functions would be immediately affected?

A. Only display of graphics on monitor
B. Only data storage on hard disk
C. Communication between all components including CPU, RAM, and peripherals would fail ✓
D. Only input device functionality

Answer: C. Communication between all components including CPU, RAM, and peripherals would fail
The motherboard is the backbone connecting all components. Its failure would prevent communication between the CPU, RAM, storage, and all peripheral devices, making the entire system non-functional.

Modern SSDs (Solid State Drives) have largely replaced traditional HDDs. Which characteristic of SSDs makes them superior for the primary reasons stated in modern systems?

A. SSDs can store more data than HDDs
B. SSDs use magnetic storage unlike HDDs
C. SSDs have no moving parts, consume less power, and provide faster data access speeds ✓
D. SSDs require more maintenance than HDDs

Answer: C. SSDs have no moving parts, consume less power, and provide faster data access speeds
SSDs (Solid State Drives) use flash memory without moving parts, making them faster, more reliable, more energy-efficient, and more durable than mechanical HDDs.

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Chapter 2: Computer Languages