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This set of Digital Electronics Multiple Choice Questions & Answers (MCQs) focuses on Digital Electronics Set 14

Q1 | A large memory is compressed into a small one by using                      
  • lsi semiconductor
  • vlsi semiconductor
  • cdr semiconductor
  • ssi semiconductor
Q2 | The full form of PLD is                      
  • programmable large device
  • programmable long device
  • programmable logic device
  • programmable lengthy device
Q3 | VLSI chip utilizes                                            
  • nmos
  • cmos
  • bjt
  • all of the mentioned
Q4 | CD-ROM refers to                      
  • floppy disk
  • compact disk-read only memory
  • compressed disk-read only memory
  • compressed disk- random access memory
Q5 | Data stored in an electronic memory cell can be accessed at random and on demand
  • erom
  • ram
  • prom
  • eeprom
Q6 | A ROM is defined as                      
  • read out memory
  • read once memory
  • read only memory
  • read one memory
Q7 | Which of the following has the capability to store the information permanently?
  • ram
  • rom
  • storage cells
  • both ram and rom
Q8 | ROM has the capability to perform
  • write operation only
  • read operation only
  • both write and read operation
  • erase operation
Q9 | Since, ROM has the capability to read the information only then also it has been designed, why?
  • for controlling purpose
  • for loading purpose
  • for booting purpose
  • for erasing purpose
Q10 | The ROM is a                        
  • sequential circuit
  • combinational circuit
  • magnetic circuit
  • static circuit
Q11 | ROM is made up of                        
  • nand and or gates
  • nor and decoder
  • decoder and or gates
  • nand and decoder
Q12 | Why are ROMs called non-volatile memory?
  • they lose memory when power is removed
  • they do not lose memory when power is removed
  • they lose memory when power is supplied
  • they do not lose memory when power is supplied
Q13 | In ROM, each bit is a combination of the address variables is called                        
  • memory unit
  • storage class
  • data word
  • address
Q14 | Which is not a removable drive?
  • zip
  • hard disk
  • super disk
  • jaz
Q15 | In ROM, each bit combination that comes out of the output lines is called                        
  • memory unit
  • storage class
  • data word
  • address
Q16 | VLSI chip utilizes                        
  • nmos
  • cmos
  • bjt
  • all of the mentioned
Q17 | The time from the beginning of a read cycle to the end of tACS/tAA is called as
  • write enable time
  • data hold
  • read cycle time
  • access time
Q18 | Why did PROM introduced?
  • to increase the storage capacity
  • to increase the address locations
  • to provide flexibility
  • to reduce the size
Q19 | Which of the following is programmed electrically by the user?
  • rom
  • eprom
  • prom
  • eeprom
Q20 | PROMs are available in                        
  • bipolar and mosfet technologies
  • mosfet and fet technologies
  • fet and bipolar technologies
  • mos and bipolar technologies
Q21 | How many 8 k × 1 RAMs are required to achieve a memory with a word capacity of 8 k and a word length of eight bits?
  • eight
  • two
  • one
  • four
Q22 | Which of the following best describes the fusible-link PROM?
  • manufacturer-programmable, reprogrammable
  • manufacturer-programmable, one-time programmable
  • user-programmable, reprogrammable
  • user-programmable, one-time programmable
Q23 | Which part of a Flash memory architecture manages all chip functions?
  • program verify code
  • floating-gate mosfet
  • command code
  • input/output pins
Q24 | How much locations an 8-bit address code can select in memory?
  • 8 locations
  • 256 locations
  • 65,536 locations
  • 131,072 locations
Q25 | What is a fusing process?
  • it is a process by which data is passed to the memory
  • it is a process by which data is read through the memory
  • it is a process by which programs are burnout to the diode/transistors
  • it is a process by which data is fetched through the memory