Embedded systems Practice Questions

Question 1

Which of the following is an example of an embedded system?

Accepted Answer

The control system in a modern washing machine. — An embedded system is a computer system designed for a specific function within a larger system. A washing machine's control system is dedicated to managing wash cycles, making it embedded. A desktop PC, smartphone, and server are general-purpose systems.

Question 2

Which of the following is an example of a typical embedded system?

Accepted Answer

The control system inside a washing machine — An embedded system is a computer system designed for a specific function within a larger system, often with real-time constraints. A washing machine's control system is a classic example. Desktop computers, smartphones, and servers are general-purpose systems, not embedded.

Question 3

Which of the following is a key difference between a microcontroller and a microprocessor?

Accepted Answer

A microcontroller includes CPU, memory, and I/O peripherals on a single chip, while a microprocessor typically requires external components. — Microcontrollers are designed for embedded systems with integrated memory and peripherals, making them self-contained. Microprocessors are general-purpose CPUs that need external RAM, ROM, and I/O controllers. The other options are not universally true.

Question 4

Which of the following is an example of an embedded system?

Accepted Answer

A microprocessor in a washing machine that controls the wash cycle. — An embedded system is a computer system with a dedicated function within a larger system. A washing machine's microprocessor is designed to control specific tasks (wash cycles) and is not user-programmable for general purposes. Desktops, smartphones, and servers are general-purpose systems.

Embedded systems

Subtopics in this area

Embedded systems Revision Guide

Learning Objectives

Sample Exam Questions

Related Topics in OCR GCSE Computer Science

Additional programming techniques

Boolean logic

Programming fundamentals

Primary storage (memory)