Semiconductor Memory Questions and Answers

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Q11
What is the principal advantage of using address multiplexing with DRAM memory?
  • A reduced memory access time
  • B reduced requirement for constant refreshing of the memory contents
  • C reduced pin count and decrease in package size
  • D no requirement for a chip-select input line, thereby reducing the pin count
Answer: Option C
Q12
Which type of memory retains data only as long as power is supplied?
  • A Volatile memory
  • B Non-volatile memory
  • C Secondary memory
  • D Cache memory
Answer: Option A
Explanation: Volatile memory loses its data when power is turned off, while non-volatile memory retains data.
Q13
What is the main characteristic of ROM?
  • A Read-only
  • B Read-write
  • C Volatile
  • D Temporary storage
Answer: Option A
Explanation: ROM is non-volatile and used to store permanent data that should not be modified.
Q14
Which memory type allows both read and write operations?
  • A RAM
  • B ROM
  • C PROM
  • D EPROM
Answer: Option A
Explanation: RAM is volatile memory that allows both reading and writing of data.
Q15
What does DRAM stand for?
  • A Dynamic Random Access Memory
  • B Digital Random Access Memory
  • C Data Random Access Memory
  • D Direct Random Access Memory
Answer: Option A
Explanation: DRAM uses capacitors to store data and needs periodic refreshing.
Q16
Which memory type is typically used for cache memory?
  • A SRAM
  • B DRAM
  • C ROM
  • D EEPROM
Answer: Option A
Explanation: SRAM is faster than DRAM and is used for cache memory due to its speed.
Q17
What is the purpose of EEPROM?
  • A Electrically Erasable Programmable Read-Only Memory
  • B Electronically Erased Programmable Read-Only Memory
  • C Electrical Erasure Programmable Read-Only Memory
  • D Electronic Erasure Programmable Read-Only Memory
Answer: Option A
Explanation: EEPROM can be erased and reprogrammed electrically without removing from circuit.
Q18
Which memory type is non-volatile and can be programmed only once?
  • A PROM
  • B EPROM
  • C EEPROM
  • D Flash Memory
Answer: Option A
Explanation: PROM can be programmed once and cannot be changed afterward.
Q19
What is the main advantage of flash memory over EEPROM?
  • A Faster erase operations
  • B Lower cost
  • C Higher density
  • D Lower power consumption
Answer: Option A
Explanation: Flash memory can erase entire blocks at once, making it faster for bulk operations.
Q20
Which memory type uses magnetic storage principles?
  • A Core Memory
  • B Semiconductor Memory
  • C Optical Memory
  • D Bubble Memory
Answer: Option A
Explanation: Core memory uses magnetic cores to store data and was used in early computers.

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