IGCSE Embedded Devices Quiz

What is the function of a microprocessor in an embedded system?

• To provide physical support for the system

• To generate power for the system

• To store data for the system

• To execute instructions and control operations

Explain the concept of clock speed in a microprocessor.

• The number of USB ports on the processor

• The weight of the processor

• The number of cycles per second that the processor can execute

• The size of the processor's screen

What are the key components of a microprocessor?

• motherboard, power supply, graphics card, sound card

• RAM, ROM, hard drive, CPU

• control unit, ALU, registers, data bus

• keyboard, mouse, monitor, printer

How does a microprocessor differ from a microcontroller?

• A microcontroller is used in desktop computers, while a microprocessor is used in embedded systems.

• A microprocessor has more memory than a microcontroller.

• A microcontroller does not have a CPU, memory, or I/O peripherals.

• A microcontroller includes a CPU, memory, and I/O peripherals all on a single chip.

What is the main purpose of an embedded system?

• Performing a specific task within a larger system

• Acting as a standalone device with no connection to other systems

• Providing entertainment and leisure activities

• Serving as a general-purpose computer for various tasks

List three characteristics of an embedded system.

• Real-time operation, high power consumption, and large size

• High power consumption, large size, and non-real-time operation

• Low power consumption, large size, and non-real-time operation

• Real-time operation, low power consumption, and small size

Explain the concept of real-time operation in embedded systems.

• The system's ability to respond to input or events without any time constraint

• The system's ability to respond to input or events within a specific time frame

• The system's ability to respond to input or events at random times

• The system's ability to respond to input or events after a long delay

What are the main challenges in designing embedded systems?

• Unlimited resources, no time constraints, low power consumption, hardware-software separation

• Limited resources, real-time constraints, power consumption, hardware-software co-design

• Abundant resources, no real-time constraints, high power consumption, hardware-software isolation

• No challenges, ample resources, no time constraints, negligible power consumption, hardware-software independence

Give an example of an embedded system used in everyday life.

• Smart thermostat

• Car engine

• Television

• Refrigerator