Memory and Programmable Logic MCQs

20 min
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1. What is the primary function of memory in digital systems?
(A) Perform arithmetic operations
(B) Control input devices
(C) Store data and instructions
(D) Generate clock signals

2. Which memory is volatile?
(A) ROM
(B) EEPROM
(C) RAM
(D) Flash memory

3. Which memory loses its contents when power is turned off?
(A) RAM
(B) ROM
(C) Flash
(D) EPROM

4. Which type of ROM can be erased using ultraviolet light?
(A) PROM
(B) EEPROM
(C) Flash
(D) EPROM

5. Which memory can be electrically erased and reprogrammed?
(A) ROM
(B) EEPROM
(C) EPROM
(D) PROM

6. Which memory is used to store firmware?
(A) RAM
(B) ROM
(C) Cache
(D) Register

7. What does PLA stand for?
(A) Parallel Logic Array
(B) Programmable Logic Architecture
(C) Programmable Logic Array
(D) Programmable Linear Arithmetic

8. Which programmable logic device has both AND and OR arrays programmable?
(A) ROM
(B) PLA
(C) PAL
(D) FPGA

9. In which device is the AND array programmable and OR array fixed?
(A) ROM
(B) PAL
(C) PLA
(D) SRAM

10. Which programmable device is commonly used for complex digital systems?
(A) PROM
(B) PAL
(C) FPGA
(D) ROM

11. Which memory is fastest?
(A) Cache
(B) RAM
(C) ROM
(D) Flash

12. What is the basic storage element in memory?
(A) Flip-flop
(B) Transistor
(C) Capacitor
(D) Logic gate

13. Which programmable logic device is one-time programmable?
(A) EEPROM
(B) PROM
(C) EPROM
(D) Flash

14. Which device is used to implement combinational logic functions?
(A) RAM
(B) Counter
(C) Register
(D) ROM

15. What does FPGA stand for?
(A) Fast Programmable Gate Array
(B) Fixed Programmable Gate Array
(C) Flexible Programmable Gate Array
(D) Field Programmable Gate Array

16. Which memory has the largest storage capacity?
(A) Register
(B) Cache
(C) Secondary memory
(D) RAM

17. Which programmable logic device allows reconfiguration after manufacturing?
(A) FPGA
(B) PAL
(C) PROM
(D) Mask ROM

18. Which memory is used for temporary storage during program execution?
(A) ROM
(B) Flash
(C) RAM
(D) EEPROM

19. Which logic device is faster but less flexible than PLA?
(A) PAL
(B) FPGA
(C) ROM
(D) SRAM

20. Which statement about programmable logic devices is TRUE?
(A) They cannot be reprogrammed
(B) They replace all memory devices
(C) They allow hardware customization
(D) They work only with sequential circuits