Back
0

Microprocessors and Embedded Systems

Description: This quiz covers fundamental concepts, architecture, programming, and applications of microprocessors and embedded systems.
Number of Questions: 15
Created by:
Tags: microprocessors embedded systems computer architecture programming
Start the Quiz
Attempted 0/15 Correct 0 Score 0
‹
›

What is the primary function of a microprocessor in a computer system?

  1. Performing arithmetic and logical operations

  2. Storing data and instructions

  3. Managing input and output devices

  4. Connecting different components of the system

Show answer
Correct Option: A
Explanation:

The microprocessor is responsible for executing instructions and performing calculations, which are the core operations of a computer system.

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

  1. General-purpose operating system

  2. High-level programming language

  3. Microcontroller or microprocessor

  4. Graphical user interface (GUI)

Show answer
Correct Option: C
Explanation:

Embedded systems often use microcontrollers or microprocessors as their central processing units, which are designed for specific tasks and have limited resources.

What is the purpose of an instruction register in a microprocessor?

  1. Storing the current instruction being executed

  2. Holding the result of an arithmetic or logical operation

  3. Fetching the next instruction from memory

  4. Translating high-level language instructions into machine code

Show answer
Correct Option: A
Explanation:

The instruction register temporarily stores the instruction that is currently being executed by the microprocessor.

Which addressing mode allows a program to access data at a specific memory location?

  1. Immediate addressing

  2. Direct addressing

  3. Indirect addressing

  4. Register addressing

Show answer
Correct Option: B
Explanation:

Direct addressing mode specifies the memory address of the operand directly in the instruction.

What is the role of a program counter in a microprocessor?

  1. Storing the address of the next instruction to be executed

  2. Holding the result of a comparison operation

  3. Fetching data from memory

  4. Performing arithmetic calculations

Show answer
Correct Option: A
Explanation:

The program counter holds the address of the next instruction to be executed by the microprocessor.

Which of the following is a common type of memory used in embedded systems?

  1. Dynamic random-access memory (DRAM)

  2. Static random-access memory (SRAM)

  3. Read-only memory (ROM)

  4. Flash memory

Show answer
Correct Option: D
Explanation:

Flash memory is a non-volatile memory that can be erased and reprogrammed, making it suitable for embedded systems where data needs to be stored permanently.

What is the purpose of an interrupt in a microprocessor system?

  1. To stop the execution of the current program

  2. To transfer data between memory and registers

  3. To signal an event or condition to the microprocessor

  4. To perform a mathematical calculation

Show answer
Correct Option: C
Explanation:

An interrupt is a signal that causes the microprocessor to temporarily stop the execution of the current program and respond to an event or condition.

Which of the following is a common type of bus used in microprocessors?

  1. Address bus

  2. Data bus

  3. Control bus

  4. All of the above

Show answer
Correct Option: D
Explanation:

Microprocessors typically use three types of buses: address bus, data bus, and control bus, to communicate with memory and other components.

What is the function of a stack in a microprocessor system?

  1. Storing temporary data during program execution

  2. Holding the return addresses for subroutine calls

  3. Managing the flow of data between registers and memory

  4. Performing arithmetic and logical operations

Show answer
Correct Option: A
Explanation:

The stack is a memory area used to store temporary data during program execution, such as function arguments, local variables, and return addresses.

Which of the following is a common type of embedded system?

  1. Personal computer

  2. Smartphone

  3. Digital camera

  4. Mainframe computer

Show answer
Correct Option: B
Explanation:

Smartphones are examples of embedded systems due to their specialized functionality and limited resources.

What is the primary purpose of an assembler in microprocessor programming?

  1. Converting high-level language code into machine code

  2. Translating assembly language instructions into binary code

  3. Optimizing the performance of machine code

  4. Managing the allocation of memory resources

Show answer
Correct Option: B
Explanation:

An assembler translates assembly language instructions, which are human-readable representations of machine code, into binary code that can be executed by the microprocessor.

Which of the following is a common input/output (I/O) device used in embedded systems?

  1. Keyboard

  2. Mouse

  3. Serial port

  4. Printer

Show answer
Correct Option: C
Explanation:

Serial ports are commonly used in embedded systems for communication with external devices due to their simplicity and low cost.

What is the role of a compiler in microprocessor programming?

  1. Translating high-level language code into assembly language

  2. Converting assembly language instructions into binary code

  3. Optimizing the performance of machine code

  4. Managing the allocation of memory resources

Show answer
Correct Option: A
Explanation:

A compiler translates high-level language code, such as C or Python, into assembly language, which is a low-level language closer to machine code.

Which of the following is a common type of microprocessor architecture?

  1. RISC (Reduced Instruction Set Computer)

  2. CISC (Complex Instruction Set Computer)

  3. VLIW (Very Long Instruction Word)

  4. EPIC (Explicitly Parallel Instruction Computing)

Show answer
Correct Option: A
Explanation:

RISC architecture is commonly used in microprocessors due to its focus on simple instructions and efficient execution.

What is the purpose of a watchdog timer in an embedded system?

  1. Monitoring the system for errors and taking corrective actions

  2. Keeping track of the time elapsed since the last reset

  3. Preventing the system from entering an infinite loop

  4. Managing the power consumption of the system

Show answer
Correct Option: C
Explanation:

A watchdog timer is used to prevent the system from entering an infinite loop by resetting the system if it fails to receive a signal within a specified time interval.

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions