[ AETN1112 ] Microprocessor Based Systems - Review

B

Which memory stores permanent programs?

a) RAM

b) ROM

c) Cache

d) Register

B

What is meant by PLC?

a) Programmable Ladder Controller

b) Programmable Logic Controller

c) Protected Logic Controller

d) Protected Ladder Controller

D

What are the main blocks of a microprocessor-based system?

a) Memory

b) Central Processing Unit

c) Input and output ports

d) All the above

C

Which of the following is an input device?

a) Motor

b) Heater

c) Level sensor

d) Pump

C

Which system is best suited for controlling machinery in harsh industrial environments?

a) Microcontroller

b) Microprocessor

c) PLC

d) Microcomputer

B

Output ports mainly convert:

a) Analog signals to digital signals

b) Digital signals to appropriate voltage/current for devices

c) Heat to energy

d) Noise to signal

D

If you want to design a small embedded system with minimal cost and components, you should choose:

a) Microprocessor

b) PLC

c) Microcomputer

d) Microcontroller

C

Which of the following is true about microprocessors?

a) It has an internal memory

b) It has interfacing circuits

c) It contains ALU, CU, and registers

d) It uses Harvard architecture

C

Machine language consists of:

a) English instructions

b) High-level commands

c) 0s and 1s

d) Symbols only

B

In a washing machine microprocessor system, which component stores temporary sensor values and timers?

a) ROM

b) RAM

c) ALU

d) Output ports

C

Which of the following is an output device?

a) Temperature sensor

b) Door lock sensor

c) LCD Display

d) User button

C

Which language is easiest for humans to understand?

a) Machine language

b) Assembly language

c) High-level language

d) Binary code

B

What is the role of the CPU?

a) Store permanent data

b) Execute instructions and control operations

c) Only perform arithmetic

d) Only control memory

C

If you are designing a factory automation system, which device would be most appropriate?

a) Microprocessor

b) Microcontroller

c) PLC

d) Microcomputer

B

Programmable Logic Controllers cannot be reprogrammed.

a) True

b) False

A

Which part of the CPU is responsible for mathematical calculations?

a) ALU (Arithmetic Logic Unit)

b) CU (Control Unit)

c) Register

d) RAM

A

Which memory is "volatile" (loses data when power is off)?

a) RAM

b) ROM

c) Flash

d) EPROM

B

A "Computer on a single chip" is the definition of a:

a) Microprocessor

b) Microcontroller

c) Mainframe

d) PLC

C

Which device acts as an actuator in a control system?

a) Switch

b) Sensor

c) Motor

d) Keyboard

A

Which architecture uses the same bus for both instructions and data?

a) Von Neumann Architecture

b) Harvard Architecture

c) RISC

d) CISC