Computer Memory - IBPS Clerk & PO Questions and Answers | Basic Computer Knowledge

1.

The two kind of main memory are

   A.) ROM
   B.) floppy disk and hard disk
   C.) primary and secondary
   D.) direct and sequential

Answer: Option 'C'

primary and secondary

2.

The location of a unit of data in a memory array is called its ________.

   A.) storage
   B.) address
   C.) RAM
   D.) data

Answer: Option 'B'

address

3.

On a CD-ROM, ________ are recessed areas representing a 0.

   A.) mounds
   B.) lands
   C.) pits
   D.) holes

Answer: Option 'C'

pits

4.

What is the bit storage capacity of a ROM with a 1024 * 8 organization?

   A.) 1024
   B.) 8192
   C.) 2048
   D.) 4096

Answer: Option 'B'

8192

5.

What are the two basic types of memory that your computer uses?

   A.) RAM/ROM
   B.) RW/RAM
   C.) ERAM
   D.) ROM

Answer: Option 'A'

RAM/ROM

6.

On a CD-ROM, ________ are raised areas representing a 1.

   A.) mounds
   B.) lands
   C.) holes
   D.) pits

Answer: Option 'B'

lands

7.

Typically, how often is DRAM refreshed?

   A.) 2 to 8 ms
   B.) 8 to 16 s
   C.) 4 to 16 ms
   D.) 1 to 2 s

Answer: Option 'C'

4 to 16 ms

8.

Which type of ROM can be erased by an electrical signal?

   A.) ROM
   B.) EPROM
   C.) mask ROM
   D.) EEPROM

Answer: Option 'D'

EEPROM

9.

Which one is the secondary memory device ?

   A.) CPU
   B.) ALU
   C.) floppy disk
   D.) Mouse

Answer: Option 'C'

floppy disk

10.

A nonvolatile type of memory that can be programmed and erased in sectors, rather than one byte at a time is:

   A.) flash memory
   B.) EPROM
   C.) EEPROM
   D.) MPROM

Answer: Option 'A'

flash memory

11.

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?

   A.) Eight
   B.) TwoFour
   C.) Four
   D.) One

Answer: Option 'A'

Eight

12.

What is the difference between static RAM and dynamic RAM?

   A.) Static RAM must be refreshed, dynamic RAM does not.
   B.) Dynamic RAM must be refreshed, static RAM does not.
   C.) There is no difference.
   D.) Both a & b

Answer: Option 'B'

Dynamic RAM must be refreshed, static RAM does not.

13.

Which type of ROM has to be custom built by the factory?

   A.) ROM
   B.) EPROM
   C.) mask ROM
   D.) EEPROM

Answer: Option 'C'

mask ROM

14.

EEPROM stands for ________

   A.) electrically erasable programmable read-only memory
   B.) encapsulated electrical programmable read-only memory
   C.) elementary electrical programmable read-only memory
   D.) elementary erasable programmable read-only memory

Answer: Option 'A'

electrically erasable programmable read-only memory

15.

To which pin on the RAM chip does the address decoder connect in order to signal which memory chip is being accessed?

   A.) The address input
   B.) The output enable
   C.) The data input
   D.) The chip enable

Answer: Option 'D'

The chip enable

16.

The mask ROM is ________.

   A.) MOS technology
   B.) diode technology
   C.) resistor-diode technology
   D.) DROM technology

Answer: Option 'A'

MOS technology

17.

Why is a refresh cycle necessary for a dynamic RAM?

   A.) to clear the flip-flops
   B.) The refresh cycle discharges the capacitor cells.
   C.) to set the flip-flops
   D.) The refresh cycle keeps the charge on the capacitor cells.

Answer: Option 'D'

The refresh cycle keeps the charge on the capacitor cells.

18.

The storage that supplements the primary internal storage of a computer is known as

   A.) secondary storage
   B.) background storage
   C.) primary storage
   D.) back-end storage

Answer: Option 'D'

back-end storage

19.

A major disadvantage of the mask ROM is that it:

   A.) is time consuming to change the stored data when system requirements change
   B.) cannot be reprogrammed if stored data needs to be changed
   C.) is very expensive to change the stored data when system requirements change
   D.) has an extremely short life expectancy and requires frequent replacement

Answer: Option 'B'

cannot be reprogrammed if stored data needs to be changed

20.

Which of the following memories uses a MOS capacitor as its memory cell?

   A.) SRAM
   B.) DRAM
   C.) FIFO
   D.) ROM

Answer: Option 'B'

DRAM


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