Bagsakan - Quiz

1. When an interrupt occurs, the microcontroller FIRST:

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

2. Which component is primary responsible for instruction decoding?

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

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

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

6. Which statement about interrupts is TRUE?

A) Interrupts eliminate the need for a main program
B) Interrupts stop the clock permanently
C) Interrupts allow immediate response to events
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) Integration of memory and peripherals on-chip
D) Ability to execute instructions

8. What is microcontroller?

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

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

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

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

A) TRUE
B) FALSE

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

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

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

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

13. Which company introduced the first commercially successful microcontroller?

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

14. In which decade microcontroller first introduced?

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

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

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

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