Digital Electronics Set 16

Electrical Engineering,

Bachelor of Science in Computer Science FY (BSc CS),

Bachelor of Computer Applications (BCA),

Bachelor of Science in Computer Science (BSc CS)

Practice Mode Previous Next
On This Page

This set of Digital Electronics Multiple Choice Questions & Answers (MCQs) focuses on Digital Electronics Set 16

Q1 | Which of the following control signals are selected for read and write operations in a RAM?
  • data buffer
  • chip select
  • read and write
  • memory
Answer: read and write
Q2 | Computers invariably use RAM for
  • high complexity
  • high resolution
  • high speed main memory
  • high flexibility
Answer: high speed main memory
Q3 | How many types of RAMs are?
  • 2
  • 3
  • 4
  • 5
Answer: 2
Q4 | Static RAM employs                      
  • bjt or mosfet
  • fet or jfet
  • capacitor or bjt
  • bjt or mos
Answer: bjt or mos
Q5 | Dynamic RAM employs                      
  • capacitor or mosfet
  • fet or jfet
  • capacitor or bjt
  • bjt or mos
Answer: capacitor or mosfet
Q6 | Which one of the following is volatile in nature?
  • rom
  • erom
  • prom
  • ram
Answer: ram
Q7 | The magnetic core memories have been replaced by semiconductor RAMs, why?
  • semiconductor rams are highly flexible
  • semiconductor rams have highest storing capacity
  • semiconductor rams are smaller in size
  • all of the mentioned
Answer: all of the mentioned
Q8 | The data written in flip-flop remains stored as long as                      
  • d.c. power is supplied
  • d.c. power is removed
  • a.c. power is supplied
  • a.c. power is removed
Answer: d.c. power is supplied
Q9 | What is memory decoding?
  • the process of memory ic used in a digital system is overloaded with data
  • the process of memory ic used in a digital system is selected for the range of address assigned
  • the process of memory ic used in a digital system is selected for the range of data assigned
  • the process of memory ic used in a digital system is overloaded with data allocated in memory cell
Answer: the process of memory ic used in a digital system is selected for the range of address assigned
Q10 | The first step in the design of memory decoder is                      
  • selection of a eprom
  • selection of a ram
  • address assignment
  • data insertion
Answer: address assignment
Q11 | How many address bits are required to select memory location in Memory decoder?
  • 4 kb
  • 8 kb
  • 12 kb
  • 16 kb
Answer: 12 kb
Q12 | How memory expansion is done?
  • by increasing the supply voltage of the memory ics
  • by decreasing the supply voltage of the memory ics
  • by connecting memory ics together
  • by separating memory ics
Answer: by connecting memory ics together
Q13 | IC 4116 is organised as                    
  • 512 * 4
  • 16 * 1
  • 32 * 4
  • 64 * 2
Answer: 32 * 4
Q14 | To construct 16K * 4-bit memory, how many 4116 ICs are required?
  • 1
  • 2
  • 3
  • 4
Answer: 4
Q15 | How many 1024 * 1 RAM chips are required to construct a 1024 * 8 memory system?
  • 4
  • 6
  • 8
  • 12
Answer: 8
Q16 | How many 16K * 4 RAMs are required to achieve a memory with a capacity of 64K and a word length of 8 bits?
  • 2
  • 4
  • 6
  • 8
Answer: 8
Q17 | The full form of PLD is                    
  • programmable load devices
  • programmable logic data
  • programmable logic devices
  • programmable loaded devices
Answer: programmable logic devices
Q18 | PLD contains a large number of
  • flip-flops
  • gates
  • registers
  • all of the mentioned
Answer: all of the mentioned
Q19 | Logic circuits can also be designed using
  • ram
  • rom
  • pld
  • pla
Answer: pld
Q20 | How many types of PLD is?
  • 2
  • 3
  • 4
  • 5
Answer: 2
Q21 | PAL refers to                          
  • programmable array loaded
  • programmable logic array
  • programmable array logic
  • programmable and logic
Answer: programmable array logic
Q22 | Outputs of the AND gate in PLD is known as                          
  • input lines
  • output lines
  • strobe lines
  • control lines
Answer: output lines
Q23 | PLA contains                          
  • and and or arrays
  • nand and or arrays
  • not and and arrays
  • nor and or arrays
Answer: and and or arrays
Q24 | PLA is used to implement                          
  • a complex sequential circuit
  • a simple sequential circuit
  • a complex combinational circuit
  • a simple combinational circuit
Answer: a complex combinational circuit
Q25 | A PLA is similar to a ROM in concept except that                          
  • it hasn’t capability to read only
  • it hasn’t capability to read or write operation
  • it doesn’t provide full decoding to the variables
  • it hasn’t capability to write only
Answer: it doesn’t provide full decoding to the variables
Previous Next