26/03/2020

Semiconductor Memories Interview Question Answer - 1


1
What do you mean by memory?


Memory
  • The storing of data in the form of binary words is called as memory.


2
Explain : Data type memory and storage type memory


Data type memory
  • It is used to store data.

Storage type memory
  • It is used to store programs.


3
Which is the storage elements used in the memory?


Storage element in the memory
  • Capacitor in the semiconductor memory
  • Magnetic domain in the magnetic memory
  • Flip flops


4
Write the full form of MBM.


The MBM stands for magnetic bubble memory.

5
Describe the difference between main and peripheral memory.


Main memory
  • It is an internal part of the computer.
  • It is very fast.
  • It is used generally for program memory.
  • The semiconductor memories are suitable for main memory because of its higher speed.
  • The semiconductor memories are constructed using semiconductor ICs.

Peripheral memory
  • It is add on memory which consists of large storage capacity.
  • It is much slower than the main memory.
  • It is generally used for store large amount of data.
  • Magnetic tape and magnetic disk are example of peripheral memories.
  • It is also called as auxiliary memory.


6
Define : Address, word, cell and capacity of memory


Address
  • The storage location of the binary information or bits is called as address.

Word
  • The fundamental group of bits is called as word.

Cell
  • A storage element is called as cell.

Capacity of memory
  • The total number of bits or bytes or words that can be stored by memory is called as capacity of memory.


7
Explain the term : Volatile memory and Non – volatile memory


Volatile memory
  • It is a memory whose data is lost when the power supply is cut off.

Non – volatile memory
  • It is a memory whose data does not lost when the power supply is cut off.


8
How many bits does a byte consist of?


One byte means 8 bit

9
What do you mean by 4K?


The size of the memory is represented by K (It is equal to 210 = 1024 words). Therefore the memory of size 212 (4096 words) is equal to 4K.

10
What do you mean by ‘mass storage’?


Mass storage
  • It is memory that is external to main computer.


11
What do you mean by reading and writing of data?


Reading and writing data
  • The process of storing data in the memory is called as writing in the memory.
  • The process of retrieving data from the memory is called as reading in the memory.


12
Describe the importance of read / write input in the memory.


The read operation takes place when read / write is equal to unity whereas the write operation takes place when read / write is equal to zero.

13
What is meaning of 64 × 4 memory?


The word size of the memory is 4 bits and it stores 64 words.

14
How many address line does the 4K × 16 memory consists of?


 There are 12 address lines requires for memory 4K × 16 ( The 4K is equal to 4 × 1024 = 4096 words = 212 ).

15
Which type of memory is used for permanent storage of programs?


ROM ( Random access memory)



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