Bagsakan - Quiz

1. When an interrupt occurs, the microcontroller FIRST:

A) Resets the cpu
B) Executes the next instruction
C) Save the current program state
D) Clears RAM

2. Which component is primary responsible for instruction decoding?

A) ALU
B) Control Unit
C) Program counter
D) Register file

3. Which of the following best explains why register access is faster than RAM access?

A) Registers are located inside the cpu
B) Registers are larger in size
C) Registers operate at lower clock speed
D) Registers are external to the cpu

4. Microcontrollers are commonly used in appliances, vehicles and industrial systems.

A) TRUE
B) FALSE

5. Why are microcontrollers preferred embedded systems or microprocessors?

A) Ability to run operating system
B) Lower cost and integrated peripheral
C) Higher clock speed
D) Larger memory capacity

6. Which statement about interrupts is TRUE?

A) Interrupts eliminate the need for a main program
B) Interrupts allow immediate response to events
C) Interrupts stop the clock permanently
D) Interrupts replace polling intirely

7. Which features most clearly distinguishes a microcontroller from microprocessor?

A) Presence of an ALU
B) Use of clock signals
C) Ability to execute instructions
D) Integration of memory and peripherals on-chip

8. What is microcontroller?

A) A high-speed graphics processor
B) A programmable device with cpu, memory and I/O on a single chip
C) A type of analog controller
D) A microprocessor used on for computers.

9. The main advantage of using flash memory in microcontroller is that it;

A) Has fastest access time than registers
B) Requires no power to write data
C) Is volatile
D) Can be electrically erased and programmed

10. Early microcontrollers had large memory capacities similar to modern devices

A) FALSE
B) TRUE

11. Which architectural features allow a microcontroller to execute one instruction while fetching the next?

A) Interrupts system
B) Harvard architecture
C) Pipelining
D) Direct memory access

12. Which peripheral allows microcontroller to convert an analog sensor signal into digital data?

A) ADC
B) DAC
C) Comparator
D) PWM

13. Which company introduced the first commercially successful microcontroller?

A) Texas Instruments
B) IBM
C) Motorola
D) Intel

14. In which decade microcontroller first introduced?

A) 1960's
B) 1990's
C) 1980's
D) 1970's

15. The Intel 8048, released in 1970's, is significant because it was:

A) The first ARM-based device
B) The first microprocessor used in PC's
C) One of the earliest microcontrollers
D) The first 32-bit processor

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