Memory and Storage MCQs

Question 1

The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.

Accepted Answer

16

Answer

4

Answer

8

Answer

12

Question 2

The minimum number of address lines needed for a 64K memory is ________.

Accepted Answer

16

Answer

10

Answer

12

Answer

14

Question 3

The 2147 4K × 1 static RAM contains 4096 storage locations storing one bit each. ________ 2147 RAM memory chip(s) is/are needed to configure an 8K × 8 memory.

Accepted Answer

Sixteen

Answer

One

Answer

Four

Answer

Eight

Question 4

A CD-ROM is a form of read-only memory in which data are stored as ________.

Accepted Answer

"pits" on an optical disk

Answer

magnetic "bubbles"

Answer

magnetized spots

Answer

tiny "pinholes" in an opaque substance

Question 5

A type of read/write memory available with MOS technology is ________.

Accepted Answer

both of the above

Answer

SRAM

Answer

DRAM

Answer

none of the above

Question 6

All rows in a 2118 dynamic RAM need to be refreshed ________.

Accepted Answer

every 2 milliseconds

Answer

every second

Answer

every millisecond

Answer

every 50 milliseconds

Question 7

ROM access time is defined as ________.

Accepted Answer

the time it takes to get valid output data after a valid address is applied

Answer

how long it takes to program the ROM chip

Answer

being the difference between the READ and WRITE times

Answer

the time required to activate the address lines after the ENABLE line is at a valid level

Question 8

In DRAM operations, it is assumed that R/W is in its ________ state during a ________ operation.

Accepted Answer

HIGH, read

Answer

Hi-Z, write

Answer

HIGH, write

Answer

Hi-Z, read

Question 9

The major advantage of dynamic RAM over static RAM is ________.

Accepted Answer

cost and storage density

Answer

cost

Answer

speed

Answer

storage density